lib-storage: Recognize "flags" cache field in MAILBOX_METADATA_PRECACHE_FIELDS.
lib-storage: Recognize "flags" cache field in MAILBOX_METADATA_PRECACHE_FIELDS.

jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,jkerihuel/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch