lib-storage: Optimize SEARCH_MODSEQ query if it's higher than HIGHESTMODSEQ.
lib-storage: Optimize SEARCH_MODSEQ query if it's higher than HIGHESTMODSEQ.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot