[menupath] now includes /navigation - does not match breadcrumbs

According to the configuration form [menupath] should perform like this:

[menupath]
The menu path (as reflected in the breadcrumb), not including Home or [menu]. Separated by /.

I have a site in a drupal directory, where the directory is called twinning. An alias generated for a page looks like this with pathauto 5.x-1.2:

/twinning/mecklenburg-vorpommern/rostock.html

The path after the directory reflects the two levels of menu entries needed to reach the page. This also matches the breadcrumbs.

With pathauto-5.x-2-beta1 I get a /navigation step added in between the directory and the menu:

/twinning/navigation/mecklenburg-vorpommern/rostock.html

I cannot find anyway to eliminate the /navigation. The new version of pathauto also has /content and /category added in to the default aliases generated for nodes and taxonomy respectively, but these are in the default strings in configuration and so they can easily be altered. I cannot find the string 'navigation' in the pathauto source, nor the token source, so I can't see how to revert to the old style of alias.