After upgrading my installation to OJS 18.104.22.168, I noticed that the keywords in different languages are displayed simultaneously (screenshot). To understand if it is specific to my installation, I made a clean install, and setup a new journal (etc…) and see that the situtation is same on it. The site locale are English and Turkish, and the journals are also bilangual.
This situation occurs on all themes EXCEPT DEFAULT.
Do you experience the same situation on multilangual journals?
There is another topic about it, and I think it will be fixed soon,
Works for me! thank you @drugurkocak