[fix](nereids)should set isForwardedToMaster and redirectStatus to nu…

…ll before fallback to legacy planner (#44178)

pick from master #44163

fe/fe-core/src/main/java/org/apache/doris/qe/StmtExecutor.java

@@ -624,6 +624,8 @@ public void execute(TUniqueId queryId) throws Exception {
                 }
                 parsedStmt = null;
                 planner = null;
+                isForwardedToMaster = null;
+                redirectStatus = null;
                 // Attention: currently exception from nereids does not mean an Exception to user terminal
                 // unless user does not allow fallback to lagency planner. But state of query
                 // has already been set to Error in this case, it will have some side effect on profile result