Use of Boolean "AND" in params value raises 'BadRequest' exception

[erewok]

The following should be a valid query param as a per PMP docs:

cl.query('urn:collectiondoc:query:docs', params={'tag': 'npr_api,APM'})
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "~/.virtualenvs/someproject/lib/python3.3/site-packages/py3-pmp-wrapper/pmp_api/pmp_client.py", line 124, in query
    return self.get(self.document.query(rel_type, params=params))
  File "~/.virtualenvs/someproject/lib/python3.3/site-packages/py3-pmp-wrapper/pmp_api/pmp_client.py", line 113, in get
    results = self.connector.get(endpoint)
  File "~/.virtualenvs/someproject/lib/python3.3/site-packages/py3-pmp-wrapper/pmp_api/core/conn.py", line 92, in get
    raise BadRequest(errmsg)
pmp_api.core.exceptions.BadRequest

However, it raises a BadRequest. Does it not receive a valid response? Is the status-code bad? If so, it shouldn't be listed as BadRequest, but there should be some alternate response.

Params with a semicolon pass validation, but those with a comma do not. Please address this issue so boolean values are respected in parameters or error message provides more information as to what went wrong.

[erewok]

Upon further testing, the following queries all raise BadRequest:

>>> cl.query('urn:collectiondoc:query:docs', params={'tag': 'npr_api,APM'})
...
>>> cl.query('urn:collectiondoc:query:docs', params={'text': 'cove,APM'})
...

But the following works:

>>> cl.query('urn:collectiondoc:query:docs', params={'text': 'cove,test'})
<Navigable Doc: https://api-pilot.pmp.io/docs?text=cove%2Ctest>

So this is an issue with returning something useful to the user when the server does not return a proper response. Possibly inspect for JSON, look at errors field, return server's response to the user? Or raise Exception with lots of info because user is expecting JSON in response.