When none is configured as link component, linktag has no url
When none is configured as link component, linktag has no url

else this can turn into a endless recursion (as none gets it's url from it's parent - which is the linktag)

fixes test

kaufmo/koala-framework,koala-framework/koala-framework,kaufmo/koala-framework,kaufmo/koala-framework,koala-framework/koala-framework