HTTP 500 when admin tries to edit another user's properties

Issue #3 resolved
Former user created an issue

For my case, I was logged in as admin and was trying to change another user's password. Here's the relevant bit from the stacktrace:

File '/opt/kallithea/data/templates/admin/users/', line 74 in render_body
  if c.extern_type != c.EXTERN_TYPE_INTERNAL:
AttributeError: 'ContextObj' object has no attribute 'EXTERN_TYPE_INTERNAL'