[imp] vfolder on unsubscribed mbox

[Martin Kaehmer]

Hi all,

I just found another bug in IMP: saving a search on an unsubscribed mbox as 
vfolder (even if I stay in unsubscribed mode) causes the following error 
message in the top of the left frame:

Notice: Undefined index: a in 
/var/www/org.afaik.duff_ssl/mail/lib/Horde/IMAP/Tree.php on line 1106

Afterwards all vfolders are gone from the folders view. Only manually 
deleting the vfolder entry in the db fixes the problem.

This bug is existent in both horde3.0/imp4.0 and horde3.0.1/imp4.0.1.

cheers,
Martin