anchor.diff:      }
     }
   
  -  /// Delta import. Must not be in a transaction
  -  Future jdbDeltaImport(int revision) async {
  -    var result = await transaction((txn) async {
  -      return await txnJdbDeltaImport(revision);
  -    });
  -
  +  /// notify imported result
  +  void _notifyJdbImportResult(JdbImportResult result) {
       if (listener.isNotEmpty) {
         if (result.delta && (result.content.isNotEmpty)) {
           /// Prepare listener
  
positive.code:     do {
        if (reloadData) {
          await transactionLock.synchronized(() async {
            await txnJdbDeltaImport(jdbIncrementRevisionStatus.revision);
          });
          reloadData = false;
        }
  
negative.code:         }
        }
      }
    }
  
    /// Delta import. Must not be in a transaction
    Future jdbDeltaImport(int revision) async {
      var result = await transaction((txn) async {
        return await txnJdbDeltaImport(revision);
      });
      _notifyJdbImportResult(result);
    }
  
    /// Delta import. Must be in a transaction
  