Currently, it is possible to select the root of a Template, and press the [F2] shortcut to edit its name, even if this is a disallowed operation.
However, this is marked as a 'Minor', because even though the root's name can be edited for rename, it cannot be submitted, mitigating any major problems.

The equivalent mouse-based operation, which involves double-clicking on the root, prevents the user from entering Name Edit Mode, as expected.

F2 should be prevented from entering Name Edit Root on the root of a Template.

See attached video.

1) Create a Studio Project featuring a MainPage.xaml

2) Introduce a Button Element on the Stage, and create a new Template for it.
This will open the new Template inside of the Inline Template Dummy Editor.

3) Whilst inside of the Template Dummy Editor, select the root of the Template in the Navigator ('[ControlTemplate] ByButton_Template'), and double-click on its name.
Observe how nothing happens, as expected.

4) With the '[ControlTemplate] ByButton_Template root selected, press [F2] on the keyboard.
Observe how the name is now available for renaming.

5) Type in a new name, then press [Enter].
Observe as the new name change is not registered.

Expected Results: [F2]-based rename actions are not permitted on root Elements that don't support renaming.

Repro Steps: