branch-2.1: [hotfix](external) Fixed External meta replay check (#47931)

cherry-pick from #47928

Author: zy-kkk

fe/fe-core/src/main/java/org/apache/doris/datasource/ExternalDatabase.java

@@ -240,8 +240,8 @@ public void replayInitDb(InitDatabaseLog log, ExternalCatalog catalog) {
             LOG.info("Synchronized table (create): [Name: {}, ID: {}, Remote Name: {}]",
                     table.getName(), table.getId(), log.getRemoteTableNames().get(i));
         }
-        // Check whether the remoteName and db Tbl db in idToTbl is empty
-        for (T table : idToTbl.values()) {
+        // Check whether the remoteName and db Tbl db in tmpIdToTbl is empty
+        for (T table : tmpIdToTbl.values()) {
             if (Strings.isNullOrEmpty(table.getRemoteName())
                     || table.getDb() == null) {
                 LOG.info("Table [{}] remoteName or database is empty, mark as uninitialized",
@@ -673,8 +673,8 @@ public void gsonPostProcess() throws IOException {
                         ((ExternalTable) obj).getName());
             }
         }
-        // Check whether the remoteName and db Tbl db in idToTbl is empty
-        for (T table : idToTbl.values()) {
+        // Check whether the remoteName and db Tbl db in tmpIdToTbl is empty
+        for (T table : tmpIdToTbl.values()) {
             if (Strings.isNullOrEmpty(table.getRemoteName())
                     || table.getDb() == null) {
                 initialized = false;