What is the problem?
On Special:Contributions with showRelatedTemporaryAccounts=1, if the first revision on the page has its performer hidden, clicking any of the Show IP buttons will trigger all the Show IP buttons on the page and display unavailable for all users except the temporary account you are currently viewing the contributions for.
Steps to reproduce problem
- Login to testwiki as a user with IP Reveal rights
- https://test.wikipedia.org/w/index.php?title=Special:Contributions&showRelatedTemporaryAccounts=1&title=Special%3AContributions%2F%7E2026-81502-5
- Click one of the "Show IP" buttons and see all but the top two revisions (for ~2026-81502-5) display unavailable
- Do the same on this page https://test.wikipedia.org/w/index.php?title=Special:Contributions&title=Special%3AContributions%2F%7E2025-36531-98&showRelatedTemporaryAccounts=1
- Click one of the "Show IP" buttons and see all but the revisions for ~2025-36531-98 show unavailable
Environment
Wiki(s): https://test.wikipedia.org CheckUser 2.5 (30ad76c) 20:31, 9 February 2026.