https://en.wikipedia.org/wiki/Special:Contributions/Sro23 correctly colours the link to the user page in the header red as it does not exist. However https://en.wikipedia.org/wiki/Special:DeletedContributions/Sro23 incorrectly colours it in blue.

This problem does not occur for the links to non-existent talk pages, see for example https://en.wikipedia.org/wiki/Special:DeletedContributions/!_!_!_!_!_! (Note the blue user page link here also).