2.3.1: Core dump on quota reach

Just upgraded from 2.2.34 to 2.3.1:

Jun 12 16:06:38 lmtp(example@example.name)<46176><8JrHEW7TH1tgtAAAd9aEAw>: Info: msgid=iOIOOFTVyrtapfaoLCJKLCGX2P21E2eVWiGnXPfSSik.ezvWGm_MVMKKL2i0I81WDbYtapg7RisY9PCL91ga0WQ@ketopasuse.date: save failed to INBOX: The email account that you tried to reach is over quota (Mailbox is full). Jun 12 16:06:38 lmtp(example@example.name)<46176><8JrHEW7TH1tgtAAAd9aEAw>: Fatal: master: service(lmtp): child 46176 killed with signal 11 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps)

And also, unrelated:

Jun 12 16:21:32 lmtp(53430): Error: lmtp-server: conn director.local:39204 [6]: Connection lost during data transfer: read(director.local:39204 [6]) failed: <no error>

-- Tom