If someone flags a post that has past resolved flags on it, those flags should also show up, with the resolution information shown.
This would make deferring flags a more useful action - basically, it could mean “I’m not ready to act on this until someone else flags it.”; while a past Disagree could indicate to the handler that the flagged content is probably okay.
Yes, I mentioned this to @zogstrip in chat a day or so ago.
I think a simple visible count of previous flags on the post would suffice for now – I don’t think a complete list of prior flags is necessary yet.
But it would be nice to have that on a road map somewhere in the future 
I could see that being useful.
Here’s a slightly different request:
If a post is flagged, any past flags on the same post marked as deferred are un-resolved.
That is now done
https://github.com/discourse/discourse/commit/00bd665c960f4db7dc076ce3a9640e41a3536a81