Step to reproduce:
- Go to https://meta.wikimedia.org/wiki/Special:CentralAuth/%C5%9Awi%C4%99tokrzyskie3?uselang=en
- Click "2 pages" link in "pl.wikinews.org" section.
- This link take you to https://pl.wikinews.org/wiki/Special:BlockList/%25C5%259Awi%25C4%2599tokrzyskie3 and get Bad title error.