[Bug 48657] New: GdipGetNearestColor crash in Subtitle Edit

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48657

Bug ID: 48657
           Summary: GdipGetNearestColor crash in Subtitle Edit
           Product: Wine
           Version: 5.2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdiplus
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: 5ca9da2c0197ac1260975c1b7b643dbd11185715
      Distribution: Debian

Created attachment 66512
  --> https://bugs.winehq.org/attachment.cgi?id=66512
Terminal log during crash

Steps to reproduce:
1. Install Subtitle Edit 3.5.13 from
https://github.com/SubtitleEdit/subtitleedit/releases/download/3.5.13/Subtit...
2. Run after installing
3. Application will crash almost immediately after starting.

I managed to git bisect first bad commit:
git bisect bad
5ca9da2c0197ac1260975c1b7b643dbd11185715 is the first bad commit
commit 5ca9da2c0197ac1260975c1b7b643dbd11185715
Author: Dmitry Timoshkov 
Date:   Fri Feb 7 18:31:38 2020 +0800

gdiplus: Make GdipGetNearestColor print FIXME only if indexed bitmap is
associated with the graphics object.

Signed-off-by: Dmitry Timoshkov 
    Signed-off-by: Vincent Povirk 
    Signed-off-by: Alexandre Julliard

:040000 040000 9fe62ebe33709629e4e20646059d6753eb55d1cc
6dd228c81c4850a3cc2da975c80f1dfd16a8a982 M      dlls