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

[menupath] is described on the configuration form like this:

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

In pathauto 5.x-1.2 this resulted in aliases like /zimbabwe/places-visit/harare/mukuvisi-woodlands.html, where the /zimbabwe came from the directory for drupal and the /places-visit/harare/mukuvisi-woodlands.html was the menu path with .html appended. Now I get this style of alias: /zimbabwe/navigation/places-visit/harare/mukuvisi-woodlands.html. An unwanted /navigation is being introduced between the drupal directory and the menu path. There appears to be no way to configure this. v2-beta has also introduced /content and /category, but those a defaults in the configuration and can easily be removed to revert to the previous style of alias. I can find no way to remove /navigation. I cannot even find the string in the source code!