Parent title is wrong

This relates to version 1.7.3 of the widget, the current version at the time of writing.

The %title on the parent link shows the name of the page we are on, not the parent page (the link itself is correct).

The solution would appear to be to replace (line 108)
$parentTitle = $post->post_title;
with
$parentTitle = get_the_title($post->post_parent);