Variables list is reopened when users press the Spacebar key if the original Style for which the modal was first opened is visible in the UI Builder Window

Steps to reproduce:

1. Open any Project
2. Create a UIDocument Asset in the Project Browser and open it in UI Builder
3. Create a Style Sheet and a Selector in it and select the Selector
4. Click the Kebab Menu next to any Style and select "Set variable"
5. Press the Escape key
6. Press the Spacebar key

Actual results: Escape key closes modal as expected, pressing the Spacebar opens it again if the previously opened Style is visible in the UI Builder Window

Expected results: The popup doesn't open again if the user pressed the Spacebar key if the menu was opened from a Context Menu

Reproducible with versions: 6000.3.15f1, 6000.4.6f1, 6000.5.0b7, 6000.6.0a4

Can’t test with versions: 6000.0.74f1 (No Variables in selector)

Tested on (OS): Windows 11