has_repeated_words: only .isalpha() words
has_repeated_words: only .isalpha() words

Charcoal-SE/SmokeDetector,NickVolynkin/SmokeDetector,NickVolynkin/SmokeDetector,Charcoal-SE/SmokeDetector,ArtOfCode-/SmokeDetector,ArtOfCode-/SmokeDetector