one more "cache file reopened" fix.
one more "cache file reopened" fix.

damoxc/dovecot,Distrotech/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,damoxc/dovecot,damoxc/dovecot,LTD-Beget/dovecot,damoxc/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,Distrotech/dovecot,LTD-Beget/dovecot,damoxc/dovecot