> tr("%n files", "", m_fileCount) > And if you know, how do you solve it?
Thanks, Albert, this was in fact a problem. I have now read https://community.kde.org/Frameworks/Frameworks_Localization_Policy and fixed it accordingly, see https://invent.kde.org/kde/kid3/commit/723218fa6fdda2caeba7179d666b4c1976612ccf .