FWIW, I can reproduce it on Ubuntu 20.10 as well.
- bug#47239: Test failure in tests/publish.scm with commit ... Konrad Hinsen
- bug#47239: Test failure in tests/publish.scm with co... Ludovic Courtès
- bug#47239: Test failure in tests/publish.scm wit... Konrad Hinsen
- bug#47239: Test failure in tests/publish.scm with co... Cees de Groot
- bug#47239: Test failure in tests/publish.scm with co... Cees de Groot
- bug#47239: Test failure in tests/publish.scm wit... Ludovic Courtès