[Bug 56056] New: Exiting IrfanView full screen mode creates a redundant task bar "Untitled window" item which is not clickable

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56056

Bug ID: 56056
           Summary: Exiting IrfanView full screen mode creates a redundant
                    task bar "Untitled window" item which is not clickable
           Product: Wine
           Version: 9.0-rc2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 75712
  --> https://bugs.winehq.org/attachment.cgi?id=75712
"Untitled window" item

Steps to reproduce:

1) Download IrfanView
2) Install/unpack and run
3) Open any image, click Enter (to enter full screen mode)
4) Click enter again (leave full screen mode)

An unclickable taskbar entry will appear.