Shortcut key "Shift + Space" are not working for maximizing or minimizing the Scene Window on 2nd attempt. User needs to change the mouse position.

Steps to Reproduce:

1. Create a new Project
2. Hover mouse to Scene Window
3. Click Shift+Space Button
4. Click Shift + Space Button again

Expected Result: Scene Window should be in default size

Actual Result: Scene window is not updated its size until the mouse position is not changed

Reproducible on: 2020.1.0a5, 2019.3.0b5, 2019.2.1f1, 2019.1.14f1

Environment: Linux (ubuntu 16.04 LTS)

Work Around: If the user changes mouse position a little bit then shortcut keys are working