lib-storage: LAYOUT=index no longer keeps list index locked while creating mailbox. Mailbox opening can be slow and complicated and could even try to lock the list index again. So it's a bit more racy now, but all mailbox formats can already handle races with mailbox creation.
lib-storage: LAYOUT=index no longer keeps list index locked while creating mailbox.
Mailbox opening can be slow and complicated and could even try to lock the
list index again. So it's a bit more racy now, but all mailbox formats can
already handle races with mailbox creation.

dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot