[TD-4874]<fix>: reset customScore to 0

src/mnode/src/mnodeDnode.c

@@ -101,6 +101,8 @@ static int32_t mnodeDnodeActionInsert(SSdbRow *pRow) {
     pDnode->offlineReason = TAOS_DN_OFF_STATUS_NOT_RECEIVED;
   }
 
+  pDnode->customScore = 0;
+
   dnodeUpdateEp(pDnode->dnodeId, pDnode->dnodeEp, pDnode->dnodeFqdn, &pDnode->dnodePort);
   mnodeUpdateDnodeEps();
 
@@ -1296,4 +1298,4 @@ int32_t mnodeCompactDnodes() {
   mInfo("end to compact dnodes table...");
 
   return 0;
-}
\ No newline at end of file
+}