In the drop-down menus in the "Formats" dialog, the first option that I see is labeled "Default (C)", and selecting it results in my terminal not treating unicode correctly anymore. I know that there's a unicode version of the C-locale called C-UTF-8. I think it would be good to include it instead of or in addition to the old-school C locale. I'm using Kubuntu 20.04.
*** Bug 493905 has been marked as a duplicate of this bug. ***