DirectEntry with both backgroundFocus=1 and overflow=1 leave hanging events after being destroyed, causing a segmentation fault

[Wizzerinus]

Description

Having a DirectEntry(backgroundFocus=1, overflow=1) sets up a hanging event on the Entry which triggers on any text input. When the Entry is destroyed, and then any key is pressed, the engine segfaults (specific way depends on the OS; Linux: python3: built/include/mutexPosixImpl.I:89: ReMutexPosixImpl::~ReMutexPosixImpl(): Assertion 'result == 0' failed.. Windows: window closes after 2-4 key presses. Mac: untested).

This can be fixed with an Entry.ignoreAll(), however due to the obscurity of the bug and difficulty to find it I am reporting it anyway.

Steps to Reproduce

Create this file:

from direct.gui.DirectEntry import DirectEntry
from direct.showbase.ShowBase import ShowBase


entry = DirectEntry(backgroundFocus=1, overflow=1)
entry.destroy()
ShowBase().run()

Then run it and press any key (YMMV since this is slightly harder to trigger on Windows)

Note that both backgroundFocus and overflow are required

Environment

• Operating system: Fedora Linux
• System architecture: x86_64
• Panda3D version: 1.11.0
• Installation method: build from source
• Python version (if using Python): 3.12
• Compiler (if using C++): gcc 13.2.1

[BMaxV]

I can't reproduce this.

• OS: Ubuntu 22.04 jammy
• Kernel: x86_64 Linux 5.15.0-105-generic
• panda3d.version: '1.11.0.dev3233'
• Python 3.10.12
• install method pip? but I used the prebuilt one.

[ArsThaumaturgis]

Conversely, it reproduces as described on my system.

OS: Ubuntu 22.04.4
Panda version: 1.10.14
Python version: 3.10.12
Install method: Pip, I think.