I think I found a severe bug while trying to edit an answer, and I'm unsure where to report it.
So I'm doing it just here:
An answer that had about 15 links was edited to make some word in the middle (after the first link and before the last link) a link. However, contrary to expectations, the new link was not numbered "N+1" (N being the highest link number used), but got some number in between, say "13".
If I hadn't noticed this before saving, my edit would have messed up most of the links.