Editor crash when closing the app caused by the new quick open dialog

[passivestar]

Tested versions

v4.4.dev.custom_build [1917bc3]

System information

Godot v4.4.dev (1917bc3) - macOS 14.5.0 - Multi-window, 1 monitor - Metal (Forward+) - integrated Apple M1 Max (Apple7) - Apple M1 Max (10 threads)

Issue description

Freeze and crash when closing the app after #56772:

================================================================
handle_crash: Program crashed with signal 11
Engine version: Godot Engine v4.4.dev.custom_build (1917bc3454e58fc56750b00e04aa25cb94d8d266)
Dumping the backtrace. Please include this when reporting the bug to the project developer.
[1] 1   libsystem_platform.dylib            0x000000018b6c3584 _sigtramp + 56
[2] QuickOpenResultContainer::~QuickOpenResultContainer() (in godot.macos.editor.arm64) + 112
[3] QuickOpenResultContainer::~QuickOpenResultContainer() (in godot.macos.editor.arm64) + 112
[4] Node::_notification(int) (in godot.macos.editor.arm64) + 400
[5] Object::_predelete() (in godot.macos.editor.arm64) + 132
[6] Node::_notification(int) (in godot.macos.editor.arm64) + 380
[7] Object::_predelete() (in godot.macos.editor.arm64) + 132
[8] Node::_notification(int) (in godot.macos.editor.arm64) + 380
[9] Panel::Panel()
[10] Object::_predelete() (in godot.macos.editor.arm64) + 132
[11] Node::_notification(int) (in godot.macos.editor.arm64) + 380
[12] Object::_predelete() (in godot.macos.editor.arm64) + 132
[13] Node::_notification(int) (in godot.macos.editor.arm64) + 380
[14] Object::_predelete() (in godot.macos.editor.arm64) + 132
[15] SceneTree::finalize() (in godot.macos.editor.arm64) + 64
[16] OS_MacOS::run() (in godot.macos.editor.arm64) + 424
[17] main (in godot.macos.editor.arm64) + 392
[18] 18  dyld                                0x000000018b30a0e0 start + 2360
-- END OF BACKTRACE --
================================================================

Steps to reproduce

Create a new project and close the editor

Minimal reproduction project (MRP)

N/A

[akien-mga]

CC @stijn-h @KoBeWi

[Cronos87]

I can confirm this issue as well. I opened this new quick open dialog, and after closing the editor by pressing CMD+Q, the editor crashed.