link to page about main.cpp opens in Ukrainian language from English page.
The link to this page: https://develop.kde.org/docs/kirigami/advanced-maincpp/ when accessed from this page: https://develop.kde.org/docs/use/kirigami/introduction-getting_started/#maincpp, opens this page in Ukranian: https://develop.kde.org/uk/docs/use/kirigami/advanced-maincpp/
I'm browsing the site in English and had not previously accessed Ukranian links, but it still does it.