Select Preset window does not close automatically after saving Preset asset of any component.

Steps to repro:
1. Create a new project.
2. GameObject > 3D Object > Cube.
3. Select Cube > Click on Box Collider preset icon.
4. Click on "Save current to.." button in Select Preset window.
5. Save Box Collider preset.

Actual Result:
Select Preset window does not close after saving Preset asset

Expected Result:
Select Preset window should be closed after saving Preset asset

Reproducible on:
2020.1.0a23, 2020.1.0a22.

Working Fine in:
2020.1.0a21, 2019.3.0f6.

Note: earlier status of this bug:
Reproducible on: 2020.1.0a10.
Working Fine in: 2020.1.0a9, 2019.3.0b8

Environment:
Only on Mac.