Make add parser label work for hidden_depth=0
Make add parser label work for hidden_depth=0

recognai/spaCy,aikramer2/spaCy,explosion/spaCy,explosion/spaCy,recognai/spaCy,recognai/spaCy,honnibal/spaCy,spacy-io/spaCy,aikramer2/spaCy,aikramer2/spaCy,recognai/spaCy,explosion/spaCy,honnibal/spaCy,aikramer2/spaCy,explosion/spaCy,aikramer2/spaCy,spacy-io/spaCy,spacy-io/spaCy,spacy-io/spaCy,aikramer2/spaCy,honnibal/spaCy,recognai/spaCy,explosion/spaCy,honnibal/spaCy,spacy-io/spaCy,spacy-io/spaCy,explosion/spaCy,recognai/spaCy