4.0.8 crashes on repeated search

[db1]

Changing the search term in the search field of an IMAP mailbox while the search is running will crash Mulberry. Due to the way this works it is not entirely clear if it is the first or the second change that will crash Mulberry. This behaviour can be worked around by using Cmd-Y (on Mac OS X). The behaviour is observed on Mac OS 10.4, 10.5 and 10.6 using Mulberry 4.08 both on Intel and PPC platforms. Draft mails will be preserved across the crash and reappear on restarting Mulberry. Mails in the outgoing queue seem to be handled correctly, too. In our observation it is the only reliable way to intentionally crash Mulberry 4.08...