Python.exe crashes without error on pandas.from_json

The following code returns a proper DataFrame object in python 3.6.4:

from pandas import read_json
bad_data= '{"columns":["Week of: 2018 12 7"],
    "index":["Gizlilik bildirgesini okudum, ankete kat\u0131lmay\u0131 kabul ediyorum","Gizlilik bildirgesini okudum\/okumad\u0131m ankete kat\u0131lmay\u0131 kabul etmiyorum"],
    "data":[[0],[0]]}'
read_json(bad_data, orient='split')

However, in python 3.7.0, a fatal error occurs, Python has stopped working:

Any thoughts on what's causing this failure (and of course, how to fix it)? A few observations:

• If I rename the first row as "Category 1", no error in 3.7.
• If I rename the second row as "Category 2", the error occurs, so this seems to be somehow related to the contents of the first index value.
• However, if I merely remove the first few words from the first index, but leave all the unicode in place, there's no error! (e.g., bad_data= '{"columns":["Week of: 2018 12 7"], "index":["ankete kat\u0131lmay\u0131 kabul ediyorum","Gizlilik bildirgesini okudum\/okumad\u0131m ankete kat\u0131lmay\u0131 kabul etmiyorum"],"data":[[0],[0]]}')