### Godot version

4.0.dev (c309de53997feff3286295fb2d71657f112a15db)

### System information

Linux, Nvidia, Vulkan

### Issue description

Editor segfaults when certain conditions are met when using the AnimationPlayer editor.

### Steps to reproduce

1. Create multiple animations, saved into a animation collection
2. Open an existing animation, then make a new empty animation
3. Change from seconds to fps, or add a new property to animate ()
4. Editor crashes

NOTE: It is slightly random and I have not found a perfect repro

### Minimal reproduction project

N/A (TBD?)
String path = p_path;
	
	for (int i = 0; i < animation->get_track_count(); i++) {
		String np = animation->track_get_path(i);
		if (path == np && animation->track_get_type(i) == Animation::TYPE_ANIMATION) {
			
			InsertData id;
			id.path = path;
			id.track_idx = i;
			id.value = p_value;
			id.type = Animation::TYPE_ANIMATION;
			
			id.query = TTR("animation");
			id.advance = false;
			
			_query_insert(id);
			return;
		}
	}
	InsertData id;
	id.path = path;
	id.track_idx = -1;
	id.value = p_value;
	id.type = Animation::TYPE_ANIMATION;
	id.query = TTR("animation");
	id.advance = false;
	
	_query_insert(id);
}
void AnimationTrackEditor::insert_node_value_key(Node *p_node, const String &p_property, const Variant &p_value, bool p_only_if_exists) {