Meta prob: Trying to convert an answer to a comment moves comments to that answer but does not convert answer to comment

So we all know that OSQA is probably broken beyond repair... and I got a meta problem here in OSQAs convert handling.

I just tried to convert an answer to a comment here in this thread: https://help.openstreetmap.org/questions/85038/hierarchie-von-ortsnamen . The answer by altesCoon that I tried to convert had a comment by Discostu.

OSQA for some reason did not convert the answer to a comment but moved the comment by Discostu from answer to the other. If anyone has an idea how to fix this, please help. And sorry for the confusion, I now learned that some things in OSQA do not work as expected.

Steps to reproduce the OSQA behavior: use the "more" -> "convert answer to comment" on altesCoons answer and choose the answer by Discostu as target.

Probably related (at least I got the same error modal): https://help.openstreetmap.org/questions/50830/unable-to-convert-comment-to-answer