[1.0.X] Altered a failing url template tag test to work more reliably.

There's no guarantee about the order in which ambiguous patterns are resolved.
The solution is "don't do that" and avoid ambiguity.

This is a port of r9113 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@9114 bcc190cf-cafb-0310-a4f2-bffc1f526a37