UGENE can crash in case of workflow element with command line tool has the name that is reserved by a built-in element

Scenario:

1. Open the Workflow Designer.
2. Click on the "Create element with command line tool" button on the toolbar.
3. Set "Filter" as element name.
4. Fill other fields with any valid data. Accept the dialog.
5. Put the created element to the scene.
6. Click on the element on the scene.
7. Call a context menu on the element on the scene.
8. Select "Edit configuration..." menu item.
   Current result: sometimes UGENE crashes.

The UGENE behavior is not stable. There are two elements with the same names on the workflow palette (but maybe the same IDs cause the crash).
Check, what exactly causes the crash and fix it. If the names can't be the same, then make name validator to check that entered name is unique. If IDs can't be the same, then roll the generated ID for the element.