### Godot version

4 rc 6

### System information

win 11

### Issue description

if u right click on tile in tileset editor in setup tab you get "delete delete" as an option but if u actually press the delete key it tries to delete the node in the scene tree

### Steps to reproduce

make tileset
add tile
try to delete tile with delete key

### Minimal reproduction project

N/A
if (tile_set->get_source_count() == 0) {
		
		tile_set->disconnect("changed", callable_mp(this, &TileSetAtlasSourceEditor::_tile_set_changed));
		tile_set = Ref<TileSet>();
		return;
	}
	tile_set_changed_needs_update = true;
}
void TileSetAtlasSourceEditor::_tile_proxy_object_changed(String p_what) {
	tile_set_changed_needs_update = false; 
	_update_atlas_view();
}
void TileSetAtlasSourceEditor::_atlas_source_proxy_object_changed(String p_what) {