Zanie Blue
0bfce353fb
Closes https://github.com/astral-sh/uv/issues/1388 Fixes incorrect handling of relative paths returned by indexes without an explicit `<base>`. `Url.join` will drop the last segment in an url e.g. `http://foo/bar` -> `http://foo/baz` if there is not a trailing slash but what we want is `http://foo/bar/baz`. We don't add the trailing `/` in `base_url_join_relative` because flat indexes are `http://foo/bar.html` and we _want_ `bar.html` to be replaced.