### Godot version

4.2 Stable

### System information

Linux

### Issue description

Calling TreeItem set_text() on a TreeItem that was removed via remove_child() causes debugging to end and the application to close without any error message.

### Steps to reproduce

Run the included example to get the debugger to crash. Comment out "treeItem.remove_child(subTreeItem)" for normal behaviour. 

### Minimal reproduction project

[treeItemCrash.zip](https://github.com/godotengine/godot/files/13534005/treeItemCrash.zip)

return (selected_item != nullptr);
}
void Tree::clear() {
	ERR_FAIL_COND(blocked > 0);
	if (pressing_for_editor) {
		if (range_drag_enabled) {
			range_drag_enabled = false;
			Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_VISIBLE);
			warp_mouse(range_drag_capture_pos);
		}
		pressing_for_editor = false;
	}
	if (root) {
		memdelete(root);
		root = nullptr;
	};
	selected_item = nullptr;
	edited_item = nullptr;
	popup_edited_item = nullptr;
	popup_pressing_edited_item = nullptr;
	queue_redraw();
};
void Tree::set_hide_root(bool p_enabled) {