Fix problems with lower and whitespace in variants
Fix problems with lower and whitespace in variants

Port relevant changes from #5361:

* Initialize lower flag explicitly

* Handle whitespace words from GoldParse correctly when creating raw
text with orth variants

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