Fix search limits due to frontend limit_check change

servers/slapd/overlays/pcache.c

@@ -869,8 +869,8 @@ remove_query_data (
 	op->o_req_ndn = op->o_bd->be_nsuffix[0];
 	op->ors_scope = LDAP_SCOPE_SUBTREE;
 	op->ors_deref = LDAP_DEREF_NEVER;
-	op->ors_slimit = 0;
-	op->ors_tlimit = 0;
+	op->ors_slimit = -1;
+	op->ors_tlimit = -1;
 	op->ors_filter = &filter;
 	op->ors_filterstr.bv_val = filter_str;
 	op->ors_filterstr.bv_len = strlen(filter_str);