### 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.
push_text_input(p_text);
}
void Window::_window_drop_files(const Vector<String> &p_files) {
	emit_signal(SNAME("files_dropped"), p_files);
}
Viewport *Window::get_parent_viewport() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	if (get_parent()) {
		return get_parent()->get_viewport();
	} else {
		return nullptr;
	}
}
Window *Window::get_parent_visible_window() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	Viewport *vp = get_parent_viewport();
	Window *window = nullptr;
	while (vp) {
		window = Object::cast_to<Window>(vp);
		if (window && window->visible) {
			break;
		}
		if (!vp->get_parent()) {
			break;
		}
		vp = vp->get_parent()->get_viewport();
	}
	return window;
}
void Window::popup_on_parent(const Rect2i &p_parent_rect) {