Values are erased instead of editing in tables in "Configure Element with Command Line Tool" dialog

There are three tables in "Configure Element with Command Line Tool" dialog. Values of "Name" and "Description" cells are erased instead of editing when one tries to edit their values.

Scenario:

1. Open the Workflow Designer.
2. Click the "Create element with command line tool" button on the toolbar.
3. Enter any valid tool name.
4. Click "Next" button.
5. Click "Add input" button.
   Expected result: a new row in the "Input data" table is added.
6. Double-click on the first column of the first row.
   Expected result: the editing mode is enabled for the clicked cell, the value is empty.
7. Enter any valid value.
8. Press Enter on the keyboard.
   Expected result: the editing mode for the cell is disabled. There is the entered value in the cell.
9. Double-click on the cell.
   Expected result: the editing mode is enabled for the cell, there is the entered value in it.
   Current result: the editing mode is enabled for the cell, the value is empty.

The same scenario is valid for other tables: "Output data" and "Parameters".