i have a bunch of expired certificates/keys and like to delete them in
Djigzo. Some of them were automatically assigned to a user and are now
not deleteable (no red cross). They can be deleted after opening the
user --> signing certificate setting and simply closing it agian. The
users in question have newer certificate/key pairs and they are used
without problem. It looks like the certificate list is not updated
correctly for the "deleteable" status.