* Return empty lexeme on empty string
* Return empty lexeme on empty string

oroszgy/spaCy.hu,rebeling/spaCy,spacy-io/spaCy,oroszgy/spaCy.hu,banglakit/spaCy,honnibal/spaCy,banglakit/spaCy,raphael0202/spaCy,lukw00/spaCy,raphael0202/spaCy,pombredanne/spaCy,lukw00/spaCy,rebeling/spaCy,lygics/spaCy,recognai/spaCy,wbwseeker/spaCy,Gregory-Howard/spaCy,explosion/spaCy,raphael0202/spaCy,raphael0202/spaCy,wbwseeker/spaCy,lygics/spaCy,wbwseeker/spaCy,lygics/spaCy,pombredanne/spaCy,lukw00/spaCy,aikramer2/spaCy,Gregory-Howard/spaCy,explosion/spaCy,recognai/spaCy,rebeling/spaCy,explosion/spaCy,honnibal/spaCy,wbwseeker/spaCy,wbwseeker/spaCy,raphael0202/spaCy,aikramer2/spaCy,lukw00/spaCy,spacy-io/spaCy,lygics/spaCy,rebeling/spaCy,spacy-io/spaCy,raphael0202/spaCy,aikramer2/spaCy,Gregory-Howard/spaCy,aikramer2/spaCy,honnibal/spaCy,rebeling/spaCy,pombredanne/spaCy,lygics/spaCy,oroszgy/spaCy.hu,oroszgy/spaCy.hu,recognai/spaCy,oroszgy/spaCy.hu,Gregory-Howard/spaCy,Gregory-Howard/spaCy,banglakit/spaCy,explosion/spaCy,wbwseeker/spaCy,Gregory-Howard/spaCy,spacy-io/spaCy,recognai/spaCy,recognai/spaCy,pombredanne/spaCy,lukw00/spaCy,oroszgy/spaCy.hu,explosion/spaCy,aikramer2/spaCy,banglakit/spaCy,explosion/spaCy,recognai/spaCy,banglakit/spaCy,spacy-io/spaCy,spacy-io/spaCy,banglakit/spaCy,honnibal/spaCy,aikramer2/spaCy