The "right" way to fix this is to not allow any edits to any post once it has been interacted with in any way - if it's had a like or a zap or a reply. It's the way sensible discussion systems work, and it would make sense to have it do the same here. This is a definite problem, and without any obvious "edited" indicator, it's quite a concern.
Discussion
no
Impressive argument you got there
number one there is no proof of time in nostr so you could back date an edit
do i need to say more?
The x tag contains the file hash, you don't need the time attestation to spot a remote update.