List of steps to reproduce (step by step, including full links if applicable):
- Visit https://test.wikipedia.org/wiki/Special:Preferences#mw-prefsection-rendering on any WMF project
- Notice the lack of the option to select "Modern"
What should have happened instead?:
- The skin "modern" should be available to select
Reported on enwiki by Nthep in https://en.wikipedia.org/w/index.php?title=Wikipedia:Village_pump_(technical)&oldid=1038335382#modern_skin_on_Commons
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc: