Blog Template plugin not copying widgets

Hi, looks like we may have found a bug in the new blog templates plugin. When we copy a blog, the widgets are not copied and everywhere in the template that widgets are supposed to appear, we're getting the following error instead, once we add a single widget, even a blank text widget, the errors disappear, but then we're left with a blog that doesn't have the widget settings that were supposed to be copied from the parent / source blog:

Warning: array_key_exists() expects parameter 2 to be array, boolean given in /home/leadpre2/public_html/wp-includes/widgets.php on line 858