Fix missing si_syncCookie numcsns

servers/slapd/syncrepl.c

@@ -589,6 +589,7 @@ check_syncprov(
 		slap_compose_sync_cookie( NULL, &si->si_syncCookie.octet_str,
 			si->si_syncCookie.ctxcsn, si->si_syncCookie.rid,
 			si->si_syncCookie.sid );
+		slap_parse_sync_cookie( &si->si_syncCookie, NULL );
 	}
 	ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
 	return changed;