[Bug 40345] New: First program start: AltGR doesn't work

https://bugs.winehq.org/show_bug.cgi?id=40345

Bug ID: 40345
           Summary: First program start: AltGR doesn't work
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Debian

Debian (both stable and sid), LXDE desktop
Newest Wine Version

If Wine is started the first time after after starting the X server (ie. after
booting, or after restarting X manually),
*and* if the AltGr key wasn't used between starting X and Wine,
then AlgGr and any key combination with it won't work in the started Wine
program (while it works in Linux programs without problems).

Closing the started Wine program and restarting it again fixes the issue.
Also, there is no problem if AltGr is used before starting Wine.

In my case, it's with Notepad++ (but happens in other programs too).
Typing eg. { } [ ] on a eg. german keyboard without AltGr is impossible.