Change Details

The `BadTitle` exception is nowhere raised in the library. Either we mark it as deprecated or we start using it again and raise it to be compatible with compat. Maybe `InvalidTitle` subclasses it, as the `Link` constructor is afaik the only place where we would encounter it now. There is T106954 which raises `InvalidTitle` on the result from the API using a bad title. On other queries it doesn't specifically says that a title like [[https://en.wikipedia.org/w/api.php?action=query&titles=Talk:Project:Foo|Talk:Project:Foo]] is invalid.