Do not treat incr backup tables as async replicas (#7109)

Author: Enjection

.github/config/muted_ya.txt

@@ -42,7 +42,6 @@ ydb/core/persqueue/ut/ut_with_sdk TopicAutoscaling.ReadingAfterSplitTest_Prefere
 ydb/core/persqueue/ut/ut_with_sdk [*/*]*
 ydb/core/tx/coordinator/ut Coordinator.RestoreTenantConfiguration
 ydb/core/tx/datashard/ut_change_exchange Cdc.InitialScanDebezium
-ydb/core/tx/datashard/ut_incremental_backup IncrementalBackup.BackupRestore
 ydb/core/tx/schemeshard/ut_restore TImportTests.ShouldSucceedOnManyTables
 ydb/core/tx/schemeshard/ut_split_merge TSchemeShardSplitBySizeTest.Merge1KShards
 ydb/core/tx/tx_proxy/ut_ext_tenant TExtSubDomainTest.CreateTableInsideAndAlterDomainAndTable-AlterDatabaseCreateHiveFirst*

ydb/core/tx/schemeshard/schemeshard_path.cpp

@@ -391,6 +391,11 @@ const TPath::TChecker& TPath::TChecker::NotAsyncReplicaTable(EStatus status) con
         return *this;
     }
 
+    // do not treat incr backup tables as async replica
+    if (Path->IsIncrementalBackupTable()) {
+        return *this;
+    }
+
     return Fail(status, TStringBuilder() << "path is an async replica table"
         << " (" << BasicPathInfo(Path.Base()) << ")");
 }
@@ -1633,7 +1638,6 @@ bool TPath::IsAsyncReplicaTable() const {
         return false;
     }
 
-    TPathElement::TPtr path = SS->PathsById.at(Base()->PathId);
     TTableInfo::TCPtr tableInfo = SS->Tables.at(Base()->PathId);
 
     return tableInfo->IsAsyncReplica();