[Bug 43898] New: Steam: Crashes after regaining focus when in Steam Guard email code window

https://bugs.winehq.org/show_bug.cgi?id=43898

Bug ID: 43898
           Summary: Steam: Crashes after regaining focus when in Steam
                    Guard email code window
           Product: Wine
           Version: 2.17
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Steps to Reproduce:

1. Create a new wineprefix
2. Install steam
3. Launch steam
4. Enter login credentials
5. Proceed to Steam Guard dialog where email code is required
6. Switch focus to email program
7. Switch back to Steam

Expected Result:
Steam should continue functioning as though nothing happened.

Actual Result:
Steam emits a sound and crashes.