Manual:Dummy revision
(Redirected from Manual:Null revision)
A dummy revision (previously also known as null revision) is a special type of page revision that does not change the page's content. Dummy revisions cannot be created directly by users, they are created implicitly as a side effect of certain actions performed on a page, in order to show a log entry in the page history. In the database, the dummy revision is associated with the same rows in the content table as its parent.
The preferred way to create a dummy revision is PageUpdater::saveDummyRevision().
Dummy revisions are distinct from "null edits", which do not create an entry in the page history.
Actions that create dummy revisions
[edit]- Imports
- Page moves
- Page protection, unprotection, or changing protection level
Actions that do not create dummy revisions
[edit]These only generate log events, and do not create any revisions
- Changing visibility of deletions (RevisionDelete)
- Merges
- Page deletions
- Page restorations
- Patrol events