Fix morph representation in Doc.to_json
@@ -1419,7 +1419,7 @@ cdef class Doc:
if include_annotation["POS"]:
token_data["pos"] = token.pos_
if include_annotation["MORPH"]:
- token_data["morph"] = token.morph
+ token_data["morph"] = token.morph.to_json()
if include_annotation["LEMMA"]:
token_data["lemma"] = token.lemma_
if include_annotation["DEP"]:
