[imp] No "Purge Deleted" button in "Other" menu with use_trash not set

[Herbert Pophal]

Webmail Edition 5.1.3
IMP 6.2.2
PHP 5.3.29 (ius) (fcgid connected)
imap server: RHEL 6.6
cyrus-imapd-2.3.16-13.el6_6

Hi,

do you have an idea what imp can prevent from to show the "Purge 
Deleted" button in "Other" menu with preferences having use_trash not set?

This works correct for me and the majority of other accounts, but for 
some people it behaves this way.


Herbert