Improve handling of placeholder currencies in unit normalization#2

iwatt11 merged 2 commits intomainTellimer/open-source:mainfrom

11-11-fix_don_t_just_say_usd_when_no_conversion_has_taken_placeTellimer/open-source:11-11-fix_don_t_just_say_usd_when_no_conversion_has_taken_placeCopy head branch name to clipboard