Board Thread:Support Requests - Getting Technical/@comment-25046910-20160521014944/@comment-24376429-20160521023453

The traditional way to do this is to issue a lock on the file in question. This way whenever someone goes to edit the file they will be unable to for however long the lock has been issued for.

Now, here is where things get problematic. MediaWiki has no built in locking mechanism and as such no way to really tell who is editing what and when. It is this way because MediaWiki as a software is expressly stateless meaning that it doesn't actively keep track of what's happening when.

So to make a long answer short there is no practical way to do this unless it was done via the back end, which, at the moment, is probably not going to happen, especially for something that is nothing more than a slight annoyance.