Albrecht Dreß authored Feb 16, 2020 and Peter Bloomfield committed Feb 16, 2020

when it hasn't resulted in storing last-message.

* libbalsa/imap/imap-handle.c
    (imap_mbox_connect): do not dereference NULL ImapHandle:last_msg;
    (ir_preauth): parse a PREAUTH greeting the same as an OK greeting.

Fixes #23