Comment # 7 on bug 957528 from Mindaugas Baranauskas

After 1) + 2), few new [lets say French] language packages marked to install
(*-fr* and Mozilla*-translations-common ).
After 3), very large amount of packages marked to install.

P.S. (maybe off topic): KDE Plasma 5, KDE Frameworks localization files exist
not like others in /usr/share/locale/*/LC_MESSAGES/ , but in
/usr/share/locale/kf5/*/LC_MESSAGES/