Version: 2.0.89 (using Devel)
Anti-spam filter wizard does not allow to set "Move known spam to" and "Move probable spam to" to a folders on remote (IMAP) account allowing only Local Folders.
The wizard should display remote folders in the folders list.
I can confirm it.
But don't know why we don't authorize to move to imap folder.
this has been fixed in master now.