### 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
constant_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_FONT:
					data_type_node->set_icon(0, get_theme_icon(SNAME("Font"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Fonts"));
					item_list = &tree_font_items;
					font_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_FONT_SIZE:
					data_type_node->set_icon(0, get_theme_icon(SNAME("FontSize"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Font Sizes"));
					item_list = &tree_font_size_items;
					font_size_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_ICON:
					data_type_node->set_icon(0, get_theme_icon(SNAME("ImageTexture"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Icons"));
					item_list = &tree_icon_items;
					icon_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_STYLEBOX:
					data_type_node->set_icon(0, get_theme_icon(SNAME("StyleBoxFlat"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Styleboxes"));
					item_list = &tree_stylebox_items;
					stylebox_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_MAX:
					break; 
			}
			filtered_names.sort_custom<StringName::AlphCompare>();