[webcompat_sightline] JSONDecodeError: Expecting value: line 1 column 1

2025-08-18 00:42:25,305 - ERROR - Rule webcompat_sightline
Traceback (most recent call last):
  File "/home/rm_bot/bugbot/venv/lib/python3.10/site-packages/requests/models.py", line 976, in json
    return complexjson.loads(self.text, **kwargs)
  File "/usr/local/lib/python3.10/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.10/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python3.10/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 "/home/rm_bot/bugbot/bugbot/bzcleaner.py", line 856, in run
    self.send_email(date=date)
  File "/home/rm_bot/bugbot/bugbot/bzcleaner.py", line 772, in send_email
    data = self.get_email_data(date)
  File "/home/rm_bot/bugbot/bugbot/bzcleaner.py", line 690, in get_email_data
    bugs = self.get_bugs(date=date)
  File "/home/rm_bot/bugbot/bugbot/bzcleaner.py", line 465, in get_bugs
    ).get_data().wait()
  File "/home/rm_bot/bugbot/venv/lib/python3.10/site-packages/libmozdata/bugzilla.py", line 171, in get_data
    self.__get_bugs_for_history_comment()
  File "/home/rm_bot/bugbot/venv/lib/python3.10/site-packages/libmozdata/bugzilla.py", line 554, in __get_bugs_for_history_comment
    self.__get_bugs_by_search()
  File "/home/rm_bot/bugbot/venv/lib/python3.10/site-packages/libmozdata/bugzilla.py", line 619, in __get_bugs_by_search
    count = r.json()["bug_count"]
  File "/home/rm_bot/bugbot/venv/lib/python3.10/site-packages/requests/models.py", line 980, in json
    raise RequestsJSONDecodeError(e.msg, e.doc, e.pos)
requests.exceptions.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Start in bugbot/bzcleaner.py at get_bugs around line 465, then follow the traceback into libmozdata/bugzilla.py, especially __get_bugs_by_search around line 619. Inspect the response being parsed by r.json() and determine the expected handling for this failure; done means the webcompat_sightline rule no longer raises this unhandled JSONDecodeError.