1.0.3dev: The link attributes of a `INavigationContributor` are not removed when a `label` or `href` is redefined in trac.ini. Refs #11819.


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/1.0-stable@13409 af82e41b-90c4-0310-8c96-b1721e28e2e2