Yes, this will be fixed.

This should be fixed now (it opens the comment form in a new tab)

• for both gift center and friends list Comment buttons.

I understand your problem but I'm afraid I can't. I recommend copying your comment before submitting the reply so that, if something goes wrong, the comment is still saved on your clipboard. That's what I do for longer replies, because sometimes I'll misclick as well, or other things could happen like if the page just doesn't load.