Can type of message be changed freely?

For example, user posted message as "answer" but I want to change its type to "comment" or even pick out some messages as questions.

I know I can change type of post in django-livesettings/posts but "comment -> answer" works fine and "answer -> comment" works only after I add another comment (possibly this can be cache issue).

EDIT: Works only on lastest posts. Cant explain this.

Transformation "answer/comment -> question" not works at all and drops error 500 each time.

Can this be possible?

The thread cache needs to be invalidated after any change like that.

Post type, post_object.post_type value can be changed within allowed limits, also value of post_object.parent needs to be updated when moving the post around.

We have the feature (repost X as Y) planned.