Unbuntu 14.04 - Editor is not usable when bug reporter is open

1. What happened
While logging a bug with the bug reporter the main window will because paused. You are unable to use the editor while the bug reporter is open.

2. How we can reproduce it using the example you attached
- Open Unity with any project.
- Navigate to Help > Report a Bug.
- Click into the Bug reporter to take focus
- Wait a few moment for the editor in the background to turn black and white.
NOTICE ISSUE >> You are unable to go back into the Editor until the bug reporter window is closed.

Broken 2018.3.0b11, 2019.1.0a9