fix:memory leak

source/common/src/tmsg.c

@@ -7212,6 +7212,7 @@ void tDestroySSubmitReq2(SSubmitReq2 *pReq, int32_t flag) {
     tDestroySSubmitTbData(&aSubmitTbData[i], flag);
   }
   taosArrayDestroy(pReq->aSubmitTbData);
+  pReq->aSubmitTbData = NULL;
 }
 
 int32_t tEncodeSSubmitRsp2(SEncoder *pCoder, const SSubmitRsp2 *pRsp) {

source/dnode/vnode/src/tq/tqRead.c

@@ -290,6 +290,7 @@ void tqCloseReader(STqReader* pReader) {
   }
   // free hash
   taosHashCleanup(pReader->tbIdHash);
+  tDestroySSubmitReq2(&pReader->submit, TSDB_MSG_FLG_DECODE);
   taosMemoryFree(pReader);
 }