anchor.diff:    If (n_operation_high<n_operation_low) then exit;
     n_operation := Operations.SafeBoxTransaction.Account(account).n_operation;
     if (n_operation>n_operation_high) then n_operation := n_operation_high;
  +  if (n_operation<n_operation_low) then Exit;
     If (block=0) then begin
       // Start searching on pending blocks
       Operations.Lock;
  
positive.code:   aux_block, block : Cardinal;
    OperationComp : TPCOperationsComp;
    opr : TOperationResume;
    n_operation : Cardinal;
  begin
    OpResumeList.Clear;
    Result := invalid_params;
  
negative.code:       For i:=Operations.Count-1 downto 0 do begin
          op := Operations.Operation[i];
          If (op.IsSignerAccount(account)) then begin
            found_n_operation := op.GetAccountN_Operation(account);
            if (found_n_operation<n_operation_low) then Exit; // Not found
            If (found_n_operation<=n_operation) then begin
              TPCOperation.OperationToOperationResume(0,op,False,account,opr);
              opr.Balance:=-1;
              OpResumeList.Add(opr);
              if (n_operation>n_operation_low) then dec(n_operation)
              else begin
                Result := found;
                Exit;
              end;
            end;
          end;
        end;
  