Hidden 'Open Files(s)' window makes deadbeef unresponsive

[bipface]

Steps to reproduce the problem

• Launch deadbeef.
• Choose File → Open Files(s).
• → The Open Files(s) window appears.
• Rightclick the Explorer taskbar and choose Show the desktop.
• → The main window and the Open Files(s) window both disappear.
• Double-click the deafbeef tray icon until the main window appears.
• → Can't interact with the main window at all, and the Open Files(s) window is still hidden.
• Rightclick the deadbeef tray icon and choose Quit.
• → The main window and tray icon are gone but the deadbeef.exe process is still running.
• Try to launch deadbeef again.
• → Nothing happens.

Information about the software:

Deadbeef version: 1.9.6 and current nightly release
OS: Windows 10 19045.3570