It seems to be possible to edit a comment after it has been replied to. There does not seem to be any warning that there are replies depending on a previous state of the comment, nor is there any clear indication that the reply is to an old version of the comment. Of course it is possible to do this in raw wikitext, but Flow is going to be so much better as a discussion system.
Could Flow make it clear when editing a comment that there are depedent replies, please?
Could Flow indicate that a reply is to a previous version of the comment, please?