Unity and Windows hangs when changing size of any window inside Editor

Seems connected to Case 582308

2) How can we reproduce it using the example you attached
1 Open Editor and create new project
2 Try to resize Inspector window by dragging left edge
see image1 and image2
5 Repeat step 4 10-15 times
Actual result: Unity and Windows hangs, in about 10 minutes you can work with Unity again, but Unity is very slow

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Seems this is related to graphic drivers.
My laptop has 2 GPUs:
1 AMD Radeon HD 7730M
2 Intel(R) HD Graphics 4000
And this hang reproduces only when Unity uses AMD Radeon HD 7730M.
And steps seems simpler - just resize (by mouse) some window (Scene view) few times - and you can notice that Unity.exe process uses almost all available memory (6 GB)
On Intel(R) HD Graphics 4000 it is not reproducible.