This is also what I've been doing. If no one else cares enough to make a change to PM, I guess that's what I'll keep doing. It just feels to me the same as when I see code where the programmer uses the same variable for different purposes in different sections of code. Just feels like bad design -- or in this case misuse of design because a needed feature is missing.
In other words, we're letting human process take up the slack where the computer code doesn't provide all the needed functionality. Sometimes this is a good idea -- sometimes human processes are the best solution -- I just don't think that is the case here. Wouldn't it be helpful for the janitors to see a note of some kind indicating that the requested change has already been made? Seems like it would streamline their own workflow.
"If God had meant for us to think for ourselves he would have given us brains. Oh, wait..."