### Godot version

4.1.1.stable

### System information

Godot v4.1.1.stable - Windows 10.0.19045 - Vulkan (Mobile) - dedicated NVIDIA GeForce RTX 2070 SUPER (NVIDIA; 30.0.15.1295) - Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz (6 Threads)

### Issue description

When undocking the script editor so that it's floating, CollisionShape3D Shape Size handles stop working.

If they were visible on a Shape, they remain visible on that shape and still work for that shape; but they will not appear on any other collision object when selecting it.

If you launch the editor with the Script panel already in a floating state, no shape handles ever become visible.

If you dock the Script editor again, everything goes back to normal and works fine.

### Steps to reproduce

Create a 3D scene with some collision shapes.
Undock the Script editor

### Minimal reproduction project

N/A
switch (p_option) {
		case THEME_IMPORT: {
			file_dialog->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
			file_dialog->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
			file_dialog_option = THEME_IMPORT;
			file_dialog->clear_filters();
			file_dialog->add_filter("*.tet");
			file_dialog->popup_file_dialog();
			file_dialog->set_title(TTR("Import Theme"));
		} break;
		case THEME_RELOAD: {
			EditorSettings::get_singleton()->load_text_editor_theme();
		} break;
		case THEME_SAVE: {
			if (EditorSettings::get_singleton()->is_default_text_editor_theme()) {
				ScriptEditor::_show_save_theme_as_dialog();
			} else if (!EditorSettings::get_singleton()->save_text_editor_theme()) {
				EditorNode::get_singleton()->show_warning(TTR("Error while saving theme"), TTR("Error saving"));
			}
		} break;
		case THEME_SAVE_AS: {
			ScriptEditor::_show_save_theme_as_dialog();
		} break;
	}
}
void ScriptEditor::_show_save_theme_as_dialog() {