Commons:History merging and splitting

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Visualization of the merging process.

Shortcuts: 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).

History merging[edit]

Shortcut

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.

Instructions for admins
  1. Temporarily delete NewPage
  2. Move OldPage to NewPage, using the move functionality. (In case it is a file, you have to open the Move & Replace link in a new tab or disable AjaxQuickDelete in your preferences.) (Now the old history versions are the whole of the new title’s.)
  3. Undelete the NewPage page, by:
    1. Viewing the page/file history
    2. Clicking “View or restore … deleted edits?”, and
    3. Clicking on “Restore!”. (Now the new title’s history has both the old and new versions, including an extra copy of the most recent version of OldPage, created by the move tool.)
  4. At this stage, NewPage will only show the text “#REDIRECT NewPage” (assuming a redirect was the most recent version of OldPage, the NewPage page will now be showing whatever the most recent version of OldPage was). The last step is to revert (or RevisionDelete) to the last version of NewPage from before the move.

Special:MergeHistory makes it possible to automatically merge the history of two pages.


History splitting[edit]

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 title. 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.

Instructions for admins
  1. Temporarily delete the page/file (original title)
  2. Restore previous revisions up to (but not including) the point where the topic was changed.
  3. Move (without redirect) the restored versions (old topic) to the desired new title. (In case it is a file, you have to open the Move & Replace link in a new tab or disable AjaxQuickDelete in your preferences.)
    • If there’s already a file or page under the new title and you wish to histmerge into it:
    a) select the “delete the existing article” option, while moving;
    b) restore deleted revisions of new title.
  4. Restore new revisions of new topic (still at original title).

A history merge could also be undone in this way.

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

View Edit Add topic


File:MTA Bus TMC 5926.jpgFile:MTA Bus TMC 5926 on the Q35 route.jpg[edit]

✓ Done --Sreejith K (talk) 15:51, 16 September 2022 (UTC)Reply[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 15:51, 16 September 2022 (UTC)Reply[reply]

File:Entrée d'immeuble originale.jpg[edit]

  • Request: Split
  • Reason: I am requesting a split because I have updated a file that is not mine by mistake (I wanted to update one of my files instead, which looks very similar). My photo can be deleted, I will reload it later. Thank you! --User:Frédéric Neupont (talk) 07:46, 25 September 2022 (UTC)Reply[reply]
✓ Done - Moved the duplicate to File:Buet-2 (2).jpg --Sreejith K (talk) 03:50, 26 September 2022 (UTC)Reply[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:50, 26 September 2022 (UTC)Reply[reply]

Merge duplicate pictures from the Portraits in Mutinensis gr. 122[edit]

There are several low-quality old pictures from this codex that are taken from websites or journals, but now there's a whole collection of high-quality pictures directly taken from the original source.

File:Anastasius I in Mutinensis gr. 122.pngFile:76 - Anastasius I Dicorus (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Constans II (Zonaras portrait).pngFile:Constans II (Mutinensis).pngFile:90 - Constans II (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Anastasius II (Zonaras portrait).pngFile:98 - Anastasius II (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Basil I (Zonaras portrait).pngFile:Basil I (Mutinensis).pngFile:111 - Basil I (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Basil. Mutinensis gr. 122 f. 184v.jpgFile:Basil I Mutinensis gr. 122.png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Mutinensis gr. 122 184v (Basil I).pngFile:Basil I page (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Alexander (Zonaras portrait).pngFile:113 - Alexander (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Alexios I (Zonaras portrait).pngFile:139 - Alexios I Komnenos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Christopher Lekapenos Mutinensis gr. 122.pngFile:116 - Christopher Lekapenos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Basil II (Zonaras portrait).pngFile:122 - Basil II (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Romanos IV (Zonaras portrait).pngFile:Romanus Diogenes. Mutinensis gr. 122 f. 270r.jpgFile:Romanos IV Diogenes (Mutinensis).pngFile:136 - Romanos IV Diogenes (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Mutinensis gr. 122 270r (Romanos IV).pngFile:Romanos IV page (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Alexius II. Mutinensis gr. 122 f. 293v.jpgFile:142 - Alexios II Komnenos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Andronikos Komnenos.jpgFile:Andronicus I. Mutinensis gr. 122 f. 293v.jpgFile:Andronikos I (Zonaras portrait).pngFile:143 - Andronikos I Komnenos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Alexios III.jpgFile:Alexius III. Mutinensis gr. 122 f. 293v.jpgFile:145 - Alexios III Angelos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Alexius4.jpgFile:Alexius4 (cropped).jpgFile:146 - Alexios IV Angelos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Alexius V Doukas.jpgFile:Alexios V (Zonaras portrait).pngFile:Alexios V Doukas (Mutinensis).pngFile:147 - Alexios V Doukas (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Andronicus IV.jpgFile:Andronikos IV (Zonaras portrait).pngFile:Andronikos IV Palaiologos by second Zonaras scribe.pngFile:158 - Andronikos IV Palaiologos (Mutinensis - color).png[edit]

--Tintero21 (talk) 16:34, 24 September 2022 (UTC) Tintero21 (talk) 16:34, 24 September 2022 (UTC)Reply[reply]

File:Pulilan Church 20191027jwilz.jpgFile:Pulilan Church 20191013-1jwilz.jpg[edit]

  • Request: [Split]
  • Reason: User request, split the older file into a separate file.

--JWilz12345 (Talk|Contrib's.) 14:14, 25 September 2022 (UTC)Reply[reply]

✓ Done --Sreejith K (talk) 03:55, 26 September 2022 (UTC)Reply[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:55, 26 September 2022 (UTC)Reply[reply]

File:15th Legislative Assembly of Rajasthan.svgFile:15th Legislative Assembly of Rajasthan 2018.svg & File:15th Legislative Assembly of Rajasthan 2019.svg[edit]

--El Grafo (talk) 08:46, 26 September 2022 (UTC)Reply[reply]

See also[edit]