fix bug：data inconsistency will occur after multiple rows are replaced into

src/sql/engine/dml/ob_table_conflict_row_fetcher_op.cpp

@@ -202,6 +202,7 @@ int ObTableConflictRowFetcherOp::inner_get_next_row()
         LOG_DEBUG("fetch conflict row iterator end");
       } else {
         ObNewRowIterator* dup_row_iter = dup_row_iter_arr_.at(cur_row_idx_);
+        clear_evaluated_flag();
         if (OB_ISNULL(dup_row_iter)) {
           find_next_iter = true;
         } else if (OB_FAIL(dup_row_iter->get_next_row(dup_row))) {

src/storage/ob_partition_storage.cpp

@@ -1806,6 +1806,8 @@ int ObPartitionStorage::multi_get_rows(const ObStoreCtx& store_ctx, const ObTabl
             if (OB_ISNULL(access_param.op_)) {
               ret = OB_INVALID_ARGUMENT;
               LOG_WARN("invalid argument", K(ret), KP(access_param.op_));
+            } else {
+              access_param.op_->clear_evaluated_flag();
             }
             for (int64_t i = 0; OB_SUCC(ret) && i < access_param.output_exprs_->count(); i++) {
               ObDatum* datum = NULL;