Re: #113 - Fix Tour Dossier Departure nested Query (#125)
Re: #113 - Fix Tour Dossier Departure nested Query (#125)

* Fix #113 - query-chain departures on tour-dossier

1. Adding the _Parent namedtuple in models.base broke this existing
   behaviour when Querying for departures under a tour-dossier

We can remove this, as 1) Tours are deprecated & 2) We use Sieve to
paginate through the departures resources under a tour-dossier.

gadventures/gapipy