### 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.
ERR_MAIN_THREAD_GUARD;
	if (window_id != DisplayServer::INVALID_WINDOW_ID) {
		DisplayServer::get_singleton()->window_set_ime_active(p_active, window_id);
	}
}
void Window::set_ime_position(const Point2i &p_pos) {
	ERR_MAIN_THREAD_GUARD;
	if (window_id != DisplayServer::INVALID_WINDOW_ID) {
		DisplayServer::get_singleton()->window_set_ime_position(p_pos, window_id);
	}
}
bool Window::is_embedded() const {
	ERR_READ_THREAD_GUARD_V(false);
	ERR_FAIL_COND_V(!is_inside_tree(), false);
	return get_embedder() != nullptr;
}
bool Window::is_in_edited_scene_root() const {
	ERR_READ_THREAD_GUARD_V(false);
#ifdef TOOLS_ENABLED
	return is_part_of_edited_scene();
#else
	return false;
#endif
}
void Window::_make_window() {