Commons:History merging and splitting

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Page history merge Simple.png

Shortcut: COM:HMS · COM:HISTMERGE This page provides information on issues and solutions relating pages and files that underwent cut-and-paste moves (which its history has to be put back together), and inappropriate merging/overwriting (of which its history needs to be split).

Contents

History merging[edit]

Because most users have the ability to use the move page function, cut-and-paste moves are usually done by people who are not aware of that function, or when the move function fails (e.g. because the target has history), and people who aren't aware of the Administrators Noticeboard forum to ask for help from an administrator.

When a cut-and-paste move is done, the page history of a page can be split among two or more different pages. This is very undesirable, because we need to keep the history with the content for copyright reasons. In most circumstances, administrators are able to fix this by merging page histories.

History splitting[edit]

Shortcut
COM:SPLIT

Over time, pages or files may change from one underlying topic to a completely separate topic. Normally, this should be accomplished through moves of pages, or by reuploading an altered file on a slightly different filename. However, if a user is unfamiliar with those processes they may simply change the subject of a page or file (overwriting the old). If this is not caught immediately it is very easy for the new topic to build up a substantial edit history of its own.

Requesting a merge or split[edit]

To request a merge or split, fill the following template, and submit it at the bottom of this page. Remember, both files need to be of the same type. Merging of more than two files may also be possible in some cases.

==== [[:FILE/PAGE 1]] → [[:FILE/PAGE 2]] ====
* Request: [Split or Merge]
* Reason:
--~~~~
  • For merges, replace FILE/PAGE 2 with the page you want FILE/PAGE 1 contents to be merged into.
  • For splits, replace FILE/PAGE 2 with the new filename which you want the newer content to be moved from FILE/PAGE 1.


Current requests[edit]

File:Nikotin - Nicotine.svgFile:Nicotine_racemic.svg[edit]

  • Request: Split
  • Reason: 1. Please extract the first version into Nicotine_racemic.svg. 2. Furthermore please delete the second/middle formula since it depicts what can not exist. --Itu (talk) 09:38, 1 March 2016 (UTC)
✓ Done @Itu: please check the descritpions and fix them if necessary. Ankry (talk) 10:16, 1 March 2016 (UTC)
(third-party chemist chiming in...) Looks fine. DMacks (talk) 20:31, 24 April 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Ankry (talk) 21:33, 24 April 2016 (UTC)

File:International Business College Hetzendorf.jpgFile:International Business College Hetzendorf 2.jpg[edit]

  • Request: Split
  • Reason: different images of the same object --Herzi Pinki (talk) 08:07, 7 March 2016 (UTC)

--Herzi Pinki (talk) 08:07, 7 March 2016 (UTC)

✓ Done @Herzi Pinki: please, check description and categories. Ankry (talk) 10:42, 7 March 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Ankry (talk) 21:34, 24 April 2016 (UTC)

File:Bezirksvorsteher Markus Rumelhart.jpgFile:Bezirksvorsteher Markus Rumelhart 2.jpg[edit]

✓ Done Ankry (talk) 04:00, 11 March 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Ankry (talk) 21:34, 24 April 2016 (UTC)

File:Boethius.jpegFile:Boethius02.jpg[edit]

  • Request: Split
  • Reason: obvious. --Itu (talk) 22:04, 13 March 2016 (UTC)
✓ Done @Itu: please, fix description and categorization, if necessary. Ankry (talk) 06:40, 14 March 2016 (UTC)

The "Reverted to version..." looks very senseless. Can you still remove this? --Itu (talk) 07:22, 14 March 2016 (UTC)

Newest version cannot be removed. Or at least it is not worth to. Please conncentrate on content, not on revision changelog comments. Ankry (talk) 07:37, 14 March 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Ankry (talk) 21:35, 24 April 2016 (UTC)

File:Dermatographic_urticaria.jpgFile:Skin_writing01.jpg[edit]

  • Request: Split

--Itu (talk) 11:35, 23 March 2016 (UTC)

✓ Done @Itu: please check description and categories. Ankry (talk) 14:04, 23 March 2016 (UTC)
There should be some template pointing to the splitting done, because its very confusing to understand the historys after the split. --Itu (talk) 14:21, 23 March 2016 (UTC)
@Itu: There is none ot the moment. Feel free to create one. Ankry (talk) 12:49, 27 March 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Ankry (talk) 21:35, 24 April 2016 (UTC)

File:Denayer.jpgFile:Jason Denayer.jpg[edit]

Merge finished, but unfortunately (because of software bug?) something went wrong and the file version with EXIF info disappeared during processing. See phab:T131020 for more info. On hold till the bug is closed? Ankry (talk) 12:53, 27 March 2016 (UTC)

File:Intrare.jpg[edit]

first version - File:Intrare USEM.jpg
second version - File:Intrare Cocieri.jpg
  • Reason: Completely different images; ambiguous title.

--XXN, 00:00, 28 March 2016 (UTC)

✓ Done For the record, 'intrare' just means 'entrance', so the original title was indeed extremely ambiguous. Reventtalk 06:11, 28 March 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Ankry (talk) 21:36, 24 April 2016 (UTC)

File:Kirche Oberrußbach.jpgFile:Kirche Oberrußbach interior.jpg[edit]

--Herzi Pinki (talk) 13:18, 2 April 2016 (UTC)

@Herzi Pinki: Sreejithk2000 appears to have started this split on April 6, but then undeleted it without actually doing the spilt.... why is not clear from the logs. I would think, however, that it would make more sense to split out the middle version to File:Kirche Oberrußbach exterior.jpg, and keep the existing image at it's current location... it's been at this name for ~5 years, and changing it would be contrary to established practice. Reventtalk 21:25, 19 July 2016 (UTC)
Hi @Revent:, the file is unused (in the WPs, on Google images). But it is ok to extract the middle version to the name you proposed. --Herzi Pinki (talk) 04:15, 20 July 2016 (UTC)
@Herzi Pinki: Unfortunately, it's really (seriously) not possible to 'authoritatively' determine off-wiki usage... think paywalled websites, those with a robots.txt preventing crawling, ones embedded in PDFs, or ones from somewhere like India (where language issues cause Google to be really terrible). Splitting off the 'top' version of in image to a different filename is essentially a rename, and so should follow at least the 'reasoning' of the rename policy... it's better to just split out the middle, unless the overwrite was very recent.
I'm just giving this a day or two to make sure that Sreejithk didn't encounter some non-obvious issue when he tried to split this previously... unless he found some kind of problem, I'll do it soonish. Reventtalk 23:56, 20 July 2016 (UTC)
There was something wrong with the history the last time I tried to do the split. I could not do it and I reverted the file back to its old version. Feel free to try the split now. --Sreejith K (talk) 14:31, 25 July 2016 (UTC)
@Sreejithk2000: I don't think that was a 'history problem' in the sense of being a database glitch, but instead the result of an Upload Wizard bug... my 'theory' would be using the tool to upload multiple images into the 'upload cache' under the same filename, without actually finishing the process to create the file page... hitting the back button at the 'wrong' spot in the process could cause this.
Here is what I did to resolve this (it's a slightly modified version of the split process)
  1. Delete all revisions.
  2. Restore only the file, and not the file page, for the version that needs to be split. (I missed on the first try, lol, and had to 'reboot') This is intentionally creating a zombie file.
  3. Create a file page for the new zombie, by copying the content from the (at this moment, deleted) file page.
  4. Move the file, and restore the 'original'
I think this is acceptable here because both files were from the same source.... same uploader, same date, same camera, same place... so it seems apparent that the uploader did probably intend to upload them both (they uploaded a number of other images as part of the same campaign) under that license.
@Herzi Pinki: Done as described above. Reventtalk 20:34, 26 July 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Reventtalk 21:56, 28 July 2016 (UTC)

File:Song Gongdi.jpgFile:Song Gongdi2.jpg[edit]

  • Request: Split
  • Reason: the two versions are quite different.

--El caballero de los Leones (talk) 08:51, 3 April 2016 (UTC)

✓ Done Please do the necessary cleanups --Sreejith K (talk) 15:54, 4 April 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 15:57, 4 April 2016 (UTC)

File:Zhaori.jpgFile:Zhaori2.jpg[edit]

  • Request: Split
  • Reason: the two versions are quite different.

--El caballero de los Leones (talk) 08:51, 3 April 2016 (UTC)

✓ Done - Please do the necessary cleanups --Sreejith K (talk) 15:57, 4 April 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 15:57, 4 April 2016 (UTC)

File:Bridge2210e.JPGFile:Footbridge over Aeron.JPG[edit]

Same problem as above: phab:T131020 for more info. Ankry (talk) 17:13, 3 May 2016 (UTC)

File:Choshi Electric Railway 2000gata No1.JPGFile:Choshi Electric Railway 2002 Inuboh 20100808.JPG[edit]

  • Request: Split
  • Reason: The original photo was overwritten with a different photo (different location). Thanks in advance.

--DAJF (talk) 06:43, 4 May 2016 (UTC)

Done - target filename is File:Choshi Electric Railway 2002 Inuboh 20100808.jpg. (notice the lowercase file extension) Reventtalk 21:37, 19 July 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Reventtalk 21:37, 19 July 2016 (UTC)

File:Wien - Frohner-Brunnen (Josef-Holaubek-Platz 1).JPGFile:Wien - Frohner-Brunnen (Josef-Holaubek-Platz 1) 2.JPG[edit]

  • Request: Split
  • Reason: overloaded with different image, both landscape and portrait variant are good and useful.

--Herzi Pinki (talk) 08:07, 23 May 2016 (UTC)

✓ Done target filename is File:Wien - Frohner-Brunnen (Josef-Holaubek-Platz 1) 2.jpg (note the lowercase filename extension) Reventtalk 21:42, 19 July 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Reventtalk 21:42, 19 July 2016 (UTC)

File:SaltMesum.jpgFile:20160324084558!SaltMesum.jpg[edit]

  • Request: Split older versions into the new name 20160324084558!SaltMesum.
  • Reason: User overwrote the original file with a totally different file. If possible, the version history of File:SaltMesum.jpg can be cleaned up, with only versions from 31 December 2010 left in place.--Liji (talk) 10:17, 17 June 2016 (UTC)
✓ Done The older version of the file has been moved to File:SaltMesum 2.jpg. The filename suggested by the requester does not seem appropriate to me. Ankry (talk) 17:42, 17 June 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Reventtalk 21:43, 19 July 2016 (UTC)

File:National Taichung Library Liming Branch.JPG[edit]

  • Request: Delete the version from 27 April 2011 13:56.
  • Reason: User overwrote the original file with a totally different file. If possible, the version history of File:National Taichung Library Liming Branch.JPG can be cleaned up, with only versions from 10 February 2010 left in place.--Liji (talk) 10:57, 17 June 2016 (UTC)
@Liji6085: This requires an actual split, not just a suppression of the overwritten file. Hiding that upload warring occurred is not an appropriate use of admin rights. Reventtalk 21:45, 19 July 2016 (UTC)
Split to File:National Taichung Library Liming Branch (2).jpg, resultant file was a duplicate of File:Liming Branch Library Entrance.jpg, thus deleted as a duplicate. Reventtalk 21:54, 19 July 2016 (UTC)
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Reventtalk 21:54, 19 July 2016 (UTC)

File:Renault Midlum livraison blanc - Strasbourg.JPG[edit]

Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. Reventtalk 21:55, 19 July 2016 (UTC)

File:JRW-700-hikari-railstar.jpgFile:JR West 700-7000 E3 Hikari Rail Star 20090408.jpg[edit]

--DAJF (talk) 10:27, 15 August 2016 (UTC)

✓ Done @DAJF: Because of the age of the overwrite, I instead split the underlying version to File:JRW-700-hikari-railstar 20080506.jpg. Reventtalk 04:03, 26 September 2016 (UTC)
Thanks. That was probably a better way to do it. --DAJF (talk) 10:32, 26 September 2016 (UTC)

File:JNR-205-for-hachiko-line.jpgFile:Hachiko Line 205 82 20090215.jpg[edit]

  • Request: Please split the newer version to File:Hachiko Line 205 82 20090215.jpg
  • Reason: The original photo was overwritten with a different photo (different trainset taken on different date). Thanks in advance.

--DAJF (talk) 01:03, 21 August 2016 (UTC)

✓ Done @DAJF: As above, because of the age of the overwrite I split the underlying version to File:JNR-205-for-hachiko-line 20060406.jpg. Reventtalk 04:11, 26 September 2016 (UTC)
Thanks. That was probably a better way to do it. I've added/updated the appropriate categories. --DAJF (talk) 10:33, 26 September 2016 (UTC)

File:De11 omiya.jpgFile:DE11 Omiya 20100626.jpg[edit]

  • Request: Please split the newer version to File:DE11 Omiya 20100626.jpg
  • Reason: The original photo was overwritten with a different photo taken on a different date. Thanks in advance.

--DAJF (talk) 00:22, 24 September 2016 (UTC)

✓ Done @DAJF: And again, because it's so old, split the underlying version to File:De11 omiya 2010-04-10.jpg. (typed the hyphens this time, by habit, sorry. :/ ) Reventtalk 04:19, 26 September 2016 (UTC)
Thanks. I've added/updated the appropriate categories. --DAJF (talk) 10:33, 26 September 2016 (UTC)

File:HK-8000series-8008F.jpgFile:HK-8000series-8008 20060807.jpg[edit]

  • Request: Please split the older version to File:HK-8000series-8008 20060807.jpg
  • Reason: The original photo was overwritten with a different photo taken on a different date. Thanks in advance.

--DAJF (talk) 23:58, 26 September 2016 (UTC)

✓ Done Reventtalk 03:07, 27 September 2016 (UTC)
Many thanks. I've added/updated the categories accordingly. --DAJF (talk) 04:02, 27 September 2016 (UTC)

File:HK-8300series-3.JPGFile:HK-8300series 8314 20050401.jpg[edit]

  • Request: Please split the older version to File:HK-8300series 8314 20050401.jpg
  • Reason: The original photo was overwritten with a different photo taken on a different date. Thanks in advance.

--DAJF (talk) 23:58, 26 September 2016 (UTC)

✓ Done Reventtalk 03:14, 27 September 2016 (UTC)
Many thanks. I've added/updated the categories accordingly. --DAJF (talk) 04:02, 27 September 2016 (UTC)

Current admin volunteers[edit]

  1. Rehman (talk · contribs)
  2. PierreSelim (talk · contribs)
  3. Ankry (talk · contribs)
  4. Revent (talk · contribs)
  5. ~riley (talk · contribs)

See also[edit]