Logged In: YES
user_id=75334
Originator: NO

Related note, this also seems to affect dovecot. Normally, all folders in dovecot may contain both folders and messages, however it is possible to configure multiple namespaces, in which case, non-primary namespaces are contained within a \Noselect folder, causing them to display under incorrect parent items as the true parents are omitted from the array. These folders do appear on the folders page as unsubscribed, however attempting to subscribe to them will generate a TRYCREATE error.

Another issue is that both the left pane folder list and the subscription page folder lists use the same function, which will need to change, since the left pane needs to do an additional lookup of \Noselect folders that do not appear in the LSUB list.