[Bug 48010] New: Youka no sono (demo) shows white or black screen on startup.

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48010

Bug ID: 48010
           Summary: Youka no sono (demo) shows white or black screen on
                    startup.
           Product: Wine
           Version: 4.18
          Hardware: x86-64
               URL: http://trial.getchu.com/D100/1057414/youka_trial.zip
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: directx-d3d
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: 64d41b3dec0635c56268be64d407ed9bfd8c0695
      Distribution: Ubuntu

Created attachment 65542
  --> https://bugs.winehq.org/attachment.cgi?id=65542
Terminal output

Youka no sono demo (妖花の園 体験版 in Japanese) is a demo version of ADV game. After
the following commit, it shows white or black screen on startup.

commit 64d41b3dec0635c56268be64d407ed9bfd8c0695
Author: Henri Verbeet 
Date:   Thu Jul 4 16:28:03 2019 +0430

wined3d: Try harder to reuse the current context.

Reverting the patch, it works as expected. In other words, on startup, it shows
the brand logo (white background), warning messages (black background) and
title screen.
This issue is similar to Bug 47479, but it still occurs on Wine 4.18.

Step to reproduce:
 1. Click [体験版DL] in http://www.getchu.com/soft.phtml?id=1057414
    In short,
    % wget --referer='http://www.getchu.com/soft.phtml?id=1057414' \
      http://trial.getchu.com/D100/1057414/youka_trial.zip
 2. verify SHA1 value, i.e. sha1sum youka_trial.zip should be
    e8f5efb74d9ee0a6c1041d23657b10aa5356990c.
 2. unzip youka_trial.zip
 3. cd youka_trial
 4. LANG=ja_JP.UTF-8 wine youka_taiken.exe