### Godot version

4.0.beta17.mono.official

### System information

Windows 10

### Issue description

See this screenshot:
![grafik](https://user-images.githubusercontent.com/8841352/216243672-68f45b38-c5dc-40aa-bbca-e92752f2d368.png)
For .blend files, the rightclick menu entry should display 'New/..' as usual, but it instead displays 'Show in File System' (functionality is not impacted)

### Steps to reproduce

Have a .blend file and some other asset (or a folder), rightclick both, notice the difference in the 'new' submenu labeling.

### Minimal reproduction project

Any blend file and any other asset will do, but if necessary i can upload random stuff.
Ref<InputEventMouseMotion> mm = p_event;
	if (mm.is_valid() && holding_branch) {
		const int item_idx = files->get_item_at_position(mm->get_position());
		if (item_idx != -1) {
			files->deselect_all();
			String fpath = files->get_item_metadata(item_idx);
			if (fpath.ends_with("/") || fpath == "res://") {
				files->select(item_idx);
			}
			TreeItem *deselect_item = tree->get_next_selected(tree->get_root());
			while (deselect_item) {
				deselect_item->deselect(0);
				deselect_item = tree->get_next_selected(deselect_item);
			}
			
			TreeItem *tree_item = tree->get_item_with_text(files->get_item_text(item_idx));
			if (tree_item) {
				tree_item->select(0);
			} else {
				
				fpath = fpath.substr(0, fpath.rfind("/") + 1);
				if (fpath.size() > String("res://").size()) {
					fpath = fpath.left(fpath.size() - 2); 
					const int slash_idx = fpath.rfind("/");