Tokenize stuck on japanese revision

demo_tokenize.py

import mwapi
from deltas.tokenizers import wikitext_split

rev_id = 57246316

session = mwapi.Session("https://ja.wikipedia.org")
doc = session.get(action="query", prop="revisions", revids=[rev_id], rvslots="main", rvprop="content", formatversion=2)
text = doc['query']['pages'][0]['revisions'][0]['slots']['main']['content']

location = 0
for token in wikitext_split.tokenize(text):
    location += len(token)
    print(token, location)

notes.md

This revision: https://ja.wikipedia.org/w/index.php?oldid=57246316