@E621Suckstrashbags: A change file option could be abused by some. The way we manage things is to upload the correct one, and request deletion of the incorrect one. Favorites and whatnot will automatically transfer, and everyone sees the fixed post. :)
Responses
In response to blip #92553
I really enjoy the fact about images being immutable. If there is any update on a post, the md5 never changes, the url is constant; it is only information around the posts that change.