[Bug 53568] New: 16bit applications refuse to start wine 7.15+

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53568

Bug ID: 53568
           Summary: 16bit applications refuse to start wine 7.15+
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: win32u
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

After a recent commit some 16bit applications refuse to start
e.g. "Collins Dictionary" which is mentioned in bug #51082.
Other applications seem to fail with a
```
Unhandled exception: page fault on read access to 0xffffffff in 16-bit code
(02f7:10cf)
```

Bisecting the problem points to this commit:
```
commit e41c255be6ba66d1eec7affe674b8cc7699226b8
Author:     Jacek Caban 
AuthorDate: Sun Aug 14 23:41:53 2022 +0200
Commit:     Alexandre Julliard 
CommitDate: Mon Aug 15 18:15:22 2022 +0200

win32u: Use send_message_timeout for WM_CREATE and WM_NCCREATE.
```

reverting this commit (after fixing a conflict) seems to avoid
the problem.