Deserialize explicitly blank strings

Default behavior of urllib.parse_qs is to discard blank values, causing a preference of none to be deserialized as undefined, using the instance default rather than the selected preference.
This commit is contained in:
fehho 2022-11-24 13:12:06 -06:00
parent b5371b7a85
commit 7cab51f98f

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@ -441,7 +441,7 @@ class Preferences:
"""parse (base64) preferences from request (``flask.request.form['preferences']``)"""
bin_data = decompress(urlsafe_b64decode(input_data))
dict_data = {}
for x, y in parse_qs(bin_data.decode('ascii')).items():
for x, y in parse_qs(bin_data.decode('ascii'), keep_blank_values=True).items():
dict_data[x] = y[0]
self.parse_dict(dict_data)