reproducible Win32K BSOD0x1E induced by win32ss/user/ntuser/clipboard.c:382 (UserClipboardRelease) via Git-bash

I can reproduce this BSOD 0x1E always via win32ss/user/ntuser/clipboard.c:382 (UserClipboardRelease) via the following
Reproduction steps

• install Git 2.10.0 from rapps
• start Git-bash
• you may (or may not) see the graphics glitches from CORE-15688
• wait until the logging calms down
• necessary? (maximize gitbash via taskbar sysmenu)
• invoke "options" via gitbashes taskbar sysmenu
• the options dlg will open up
• exactly when you press cancel within this dlg it will break into debugger with the following callstack
  0.4.13-RC-36-gbaa9a3e_BSOD.log

BSOD is inevitable then
See this video (where I did maximize+restore one more time, but that's not necessary)
0.4.13-RC-36-gbaa9a3e_BSOD.webm

win32ss/user/ntuser/clipboard.c:382 (UserClipboardRelease) is

    co_IntSendMessage(pWinStaObj->spwndClipOwner->head.h, WM_RENDERALLFORMATS, 0, 0);

Do we see a nullptr dereference here?