### 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.
List<Ref<Resource>> changed;
	int rc = p_resources.size();
	for (int i = 0; i < rc; i++) {
		Ref<Resource> res = ResourceCache::get_ref(p_resources.get(i));
		if (res.is_null()) {
			continue;
		}
		if (!res->editor_can_reload_from_file()) {
			continue;
		}
		if (!res->get_path().is_resource_file() && !res->get_path().is_absolute_path()) {
			continue;
		}
		if (!FileAccess::exists(res->get_path())) {
			continue;
		}
		if (!res->get_import_path().is_empty()) {
			
			continue;
		}
		changed.push_back(res);
	}
	if (changed.size()) {
		for (Ref<Resource> &res : changed) {
			res->reload_from_file();
		}
	}
}
void EditorNode::_fs_changed() {