### Godot version

v4.0.beta.custom_build [eaf306e0b]

### System information

Windows 10

### Issue description

Selecting a `Window` node in the Editor's SceneTree results in the message
```
editor/editor_data.cpp:1058 - Parameter "p_node" is null.
```
and the Inspector shows empty content instead of the Window's properties.

I would expect, that clicking on a node in the SceneTree lets me edit the properties of the node.

Bisecting shows that this behavior got introduced in #71770

### Steps to reproduce

1. Create a Window node
2. Click on the Window node in the Editor's SceneTree

### Minimal reproduction project

N/A
}
			bool single_axis = m->is_shift_pressed();
			if (single_axis) {
				if (ABS(new_pos.x - previous_pos.x) > ABS(new_pos.y - previous_pos.y)) {
					new_pos.y = previous_pos.y;
				} else {
					new_pos.x = previous_pos.x;
				}
			}
			for (CanvasItem *ci : drag_selection) {
				Transform2D xform = ci->get_global_transform_with_canvas().affine_inverse() * ci->get_transform();
				ci->_edit_set_position(ci->_edit_get_position() + xform.xform(new_pos) - xform.xform(previous_pos));
			}
			return true;
		}
		
		if (b.is_valid() && !b->is_pressed() && b->get_button_index() == MouseButton::LEFT) {
			if (transform.affine_inverse().xform(b->get_position()) != drag_from) {
				if (drag_selection.size() != 1) {
					_commit_canvas_item_state(
							drag_selection,
							vformat(TTR("Move %d CanvasItems"), drag_selection.size()),
							true);
				} else {
					_commit_canvas_item_state(
							drag_selection,
							vformat(
									TTR("Move CanvasItem \"%s\" to (%d, %d)"),
									drag_selection[0]->get_name(),
									drag_selection[0]->_edit_get_position().x,