Those who want these features may also be interested in voting for the relevant feature request about full history revision. Without a full history revision, it is impossible to edit offline without risk of losing substantial information.
From Edit conflict - Wikipedia,
The simplest way to resolve an edit conflict is to ignore intervening edits and overwrite the current file. This may lead to a substantial loss of information, and alternative methods are often employed to resolve or prevent conflicts:
- Manual resolution, where the editor determines which version to retain and may manually incorporate edits into the current version of the file.
- Store backups or file comparisons of each edit, so there are the previous versions of the file can still be accessed once the original is overwritten.
- File locking, which limits the file to one editor at a time to prevent edit conflicts. Computer writer Gary B. Shelly notes that many wiki systems “will block the contributor who is attempting to edit the page from being able to do so until the contributor currently editing the page saves changes or remains idle on the page for an extended period of time.”
- Merge, by determining if the edits are in unrelated parts of the file and combining without user intervention.