TYPO3 Core

If the entrypoint of the site configuration contains the name of a page slug in a language path, the page might not be found.

1. create a site configuration with the entry point https://example.com/xyz
2. entrypoint for the default language should be / (I have not tested it with other paths)
3. entrypoint for the additional language should be /en/ (any other should work to, but this I tested)
4. create the page "xyz" in the root page for the site configuration, the page should be available at https://example.com/xyz/xyz
5. add a language variant for the page, which should be available at https://example.com/xyz/en/xyz
6. if you try to access https://example.com/xyz/en/xyz you should get a 404 error

I am pretty sure the error is int the sorting in `TYPO3\CMS\Core\Routing\BestUrlMatcher::matchCollection`, as the relative slug `/xyz` is matched against the full path of the url

I tested this for version 11.5.38 but is probably in version 12 and 13, too, as the code seems the same