Json error with get_query()

[jheinecke]

I stumbled across a problem:

p = wptools.page("Arabic")
gq = p.get_query()

which crashes due to a continue problem:

<wptools.page.WPToolsPage object at 0x7f0887ff9760>
en.wikipedia.org (query) Arabic
en.wikipedia.org (query) Arabic (&plcontinue=803|0|Kanuri_language)
en.wikipedia.org (query) Arabic (&plcontinue=803|0|ء)
Traceback (most recent call last):
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/core.py", line 199, in _load_response
    data = utils.json_loads(response)
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/utils.py", line 95, in json_loads
    return json.loads(data, encoding='utf-8')
  File "/usr/lib/python3.8/json/__init__.py", line 357, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.8/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.8/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./t.py", line 23, in <module>
    tt('Arabic')
  File "./t.py", line 12, in tt
    gq = p.get_query()
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/page.py", line 641, in get_query
    self._get('query', show, proxy, timeout)
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/core.py", line 183, in _get
    self._set_data(action)
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/page.py", line 200, in _set_data
    self._set_query_data(action)
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/page.py", line 295, in _set_query_data
    data = self._load_response(action)
  File "/home/johannes/.local/lib/python3.8/site-packages/wptools/core.py", line 201, in _load_response
    raise ValueError(_query)
ValueError: https://en.wikipedia.org/w/api.php?action=query&exintro&formatversion=2&inprop=url|watchers&list=random&pithumbsize=240&pllimit=500&ppprop=disambiguation|wikibase_item&prop=extracts|info|links|pageassessments|pageimages|pageprops|pageterms|redirects&redirects&rdlimit=500&rnlimit=1&rnnamespace=0&titles=Arabic&plcontinue=803|0|ء

Most wikipedia pages work well, but I came across a few which produce this error