Windows flicker and overlap with other windows on docking a window with less than minimum width. Happens for windows like Profiler, Package Manager, Sprite Packer, etc which have a certain minimum width for the window.
Refer to the attached video.

Steps to Reproduce:
1. Create a New Project
2. Open any window(say profiler) and dock it such that after docking, the width of the profiler window is less than its minimum width
3. Try to resize the window

Actual Result:
Window resizes gracefully

Expected Result:
Windows overlap with each other.

Note:
Resizing the window again reloads the windows to their correct layouts.

Occurring on:
2020.2.0a1, 2020.1.0a26, 2019.3.4f1, 2019.2.21f1, 2019.1.14f1, 2018.4.18f1 LTS

Environment:
Only Windows 10