Crash when closing the editor with an empty AnimationTree

[Chaosus]

Godot version

44e399e

System information

Windows 11

Issue description

The simple scene with a AnimationTree:

cause Godot heap crash when the user close the editor with the following call stack:

	godot.windows.editor.x86_64.exe!_free_base(void * block) Line 105		C++godot.windows.editor.x86_64.exe!HashMap<StringName,Object::SignalData,HashMapHasherDefault,HashMapComparatorDefault<StringName>,DefaultTypedAllocator<HashMapElement<StringName,Object::SignalData>>>::~HashMap<StringName,Object::SignalData,HashMapHasherDefault,HashMapComparatorDefault<StringName>,DefaultTypedAllocator<HashMapElement<StringName,Object::SignalData>>>() Line 620	C++
 	godot.windows.editor.x86_64.exe!Object::`scalar deleting destructor'(unsigned int)	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!memdelete(AnimationPlayer * p_class) Line 109	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!AnimationPlayerEditorPlugin::{dtor}() Line 2207	C++
 	godot.windows.editor.x86_64.exe!AnimationPlayerEditorPlugin::`scalar deleting destructor'(unsigned int)	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!memdelete(Node *) Line 109	C++
 	godot.windows.editor.x86_64.exe!Node::_notification(int p_notification) Line 212	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!Node::_notificationv(int) Line 49	C++
 	godot.windows.editor.x86_64.exe!EditorNode::_notificationv(int p_notification, bool p_reversed) Line 119	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!Object::notification(int) Line 843	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!Object::_predelete() Line 198	C++
 	godot.windows.editor.x86_64.exe!predelete_handler(Object * p_object) Line 2027	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!memdelete(Node *) Line 105	C++
 	godot.windows.editor.x86_64.exe!Node::_notification(int p_notification) Line 212	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!Node::_notificationv(int) Line 49	C++
 	godot.windows.editor.x86_64.exe!Viewport::_notificationv(int p_notification, bool p_reversed) Line 95	C++
 	godot.windows.editor.x86_64.exe!Window::_notificationv(int p_notification, bool p_reversed) Line 45	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!Object::notification(int) Line 843	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!Object::_predelete() Line 198	C++
 	godot.windows.editor.x86_64.exe!predelete_handler(Object * p_object) Line 2027	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!memdelete(Window * p_class) Line 105	C++
 	godot.windows.editor.x86_64.exe!SceneTree::finalize() Line 628	C++
 	godot.windows.editor.x86_64.exe!widechar_main(int argc, wchar_t * * argv) Line 182	C++
 	godot.windows.editor.x86_64.exe!_main() Line 206	C++
 	godot.windows.editor.x86_64.exe!main(int argc, char * * argv) Line 218	C++
 	[Inline Frame] godot.windows.editor.x86_64.exe!invoke_main() Line 102	C++
 	godot.windows.editor.x86_64.exe!__scrt_common_main_seh() Line 288	C++
 	kernel32.dll!00007ffb57ce257d()	Unknown
 	ntdll.dll!00007ffb58d0aa68()	Unknown

Steps to reproduce

Create a scene, add the AnimationTree, try to press Reload Current Project -> the editor will crash and will not be restarted.

Minimal reproduction project

TestCrash.zip