Merge request diff comments are not always rendered correctly in discussion
Zendesk issue: https://gitlab.zendesk.com/agent/tickets/27073
There are multiple problems, one of which looks like this:
In another case, the wrong avatar was shown for who started the discussion:
It would also be nice if we could get code highlighting to work in the shown section of the diff, see #12519 (closed).
I think this section of code warrants a refactor.