Found out
getfedora.org was never completely included in our translation pipeline, and was
missing the pot update part.
There is a PR ready on the infra side [1], but it will have to wait the end of beta freeze
to get merged.
Until then, I've manually updated the pot file [2], and source strings should now be
up to date on weblate.
1.
https://pagure.io/fedora-infra/ansible/pull-request/786
2.
https://pagure.io/fedora-web/translations/c/6d3815e7ec61115e62662fdcafe4a...
Thanks for reporting this.