### Godot version

4.1.dev (dc625bcbfc5b587ba8867481ee7a1f6a567c25d0)

### System information

Mageia 9, Linux

### Issue description

When importing a project in current `master`, the following error is raised for each asset that gets imported:
```
Attempting to parent and popup a dialog that already has a parent.
```

It seems to be raised once per asset, caused by the progress dialog.

CC @bruvzg

### Steps to reproduce

- Import a new project in Godot that contains importable assets, e.g. https://github.com/RPicster/godot4-demo-desert-light

### Minimal reproduction project

See above.
const Size2 add_button_size = Size2(0, scene_tabs->get_size().y);
	if (scene_tabs->get_offset_buttons_visible()) {
		
		if (scene_tab_add->get_parent() == scene_tabs) {
			scene_tabs->remove_child(scene_tab_add);
			scene_tab_add_ph->add_child(scene_tab_add);
			scene_tab_add->set_rect(Rect2(Point2(), add_button_size));
		}
	} else {
		
		if (scene_tab_add->get_parent() == scene_tab_add_ph) {
			scene_tab_add_ph->remove_child(scene_tab_add);
			scene_tabs->add_child(scene_tab_add);
		}
		if (scene_tabs->get_tab_count() == 0) {
			scene_tab_add->set_rect(Rect2(Point2(), add_button_size));
			return;
		}
		Rect2 last_tab = scene_tabs->get_tab_rect(scene_tabs->get_tab_count() - 1);
		int hsep = scene_tabs->get_theme_constant(SNAME("h_separation"));
		if (scene_tabs->is_layout_rtl()) {
			scene_tab_add->set_rect(Rect2(Point2(last_tab.position.x - scene_tab_add->get_size().x - hsep, last_tab.position.y), add_button_size));
		} else {
			scene_tab_add->set_rect(Rect2(Point2(last_tab.position.x + last_tab.size.width + hsep, last_tab.position.y), add_button_size));
		}
	}
	
	scene_tabs->connect("tab_changed", callable_mp(this, &EditorNode::_scene_tab_changed));
}
void EditorNode::_version_control_menu_option(int p_idx) {