Reading the comment from @Jdlrobson here: https://gerrit.wikimedia.org/r/#/c/234314/ I think it would be a good idea to add another way to add multiple licenses to a wiki. E.g. using an array of licenses or something similar.
This should result in addressing the fixme in https://gerrit.wikimedia.org/g/mediawiki/extensions/MobileFrontend/+/d5fef9071326bdb655a5e2981035769c4ae3ca4e/includes/MobileFrontendSkinHooks.php#30
# QA steps
1) Wikipedia
Go to https://it.m.wikipedia.org/wiki/Fliseryd and click edit. Type some text and hit next.
Expect to see By saving changes, you agree to the Terms of Use and agree to release your contribution under the CC BY-SA 3.0 e GFDL licenses.
Bonus points if the text is the Italian equivalent. That's another bug fixed if so.
2) Wikinews
Go to https://en.m.wikinews.org/wiki/UK_pay_freeze_on_public_sector_employees_will_end_next_year and click edit. Type some text and hit next.
Expect to see "By saving changes, you agree to the Terms of Use and agree to release your contribution under the CC BY 2.5 license.
{F34728218}
3) Wikidata / Commons case
Go to https://commons.m.wikimedia.org/wiki/File:20.04.2018_Republic_Square,_Yerevan_1.jpg and click edit. Type some text and hit next.
Expect to see "By saving changes, you agree to the Terms
of Use and agree to release your contribution under the license."