fix(query): set initial value for neighbor block check.

source/dnode/vnode/src/tsdb/tsdbRead.c

@@ -2574,12 +2574,12 @@ static int32_t checkForNeighborFileBlock(STsdbReader* pReader, STableBlockScanIn
   SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo;
   SBlockData*         pBlockData = &pReader->status.fileBlockData;
 
+  *state = CHECK_FILEBLOCK_QUIT;
   int32_t step = ASCENDING_TRAVERSE(pReader->order) ? 1 : -1;
 
   int32_t nextIndex = -1;
   SBlock* pNeighborBlock = getNeighborBlockOfSameTable(pFBlock, pScanInfo, &nextIndex, pReader->order);
   if (pNeighborBlock == NULL) {  // do nothing
-    *state = CHECK_FILEBLOCK_QUIT;
     return 0;
   }