Co 2785 cancel invoices on sponsorship termination (#952)
Co 2785 cancel invoices on sponsorship termination (#952)

* Safety check if the report is only the name.

* Add test that invoice are actually cancelled.

* Update sponsorship_switzerland/models/contracts.py

Co-Authored-By: ecino <57642a6dbd5feeabed71fe929440c49c23908a9c@users.noreply.github.com>

eicher31/compassion-switzerland,ecino/compassion-switzerland,eicher31/compassion-switzerland,eicher31/compassion-switzerland,ecino/compassion-switzerland,CompassionCH/compassion-switzerland,CompassionCH/compassion-switzerland,ecino/compassion-switzerland,CompassionCH/compassion-switzerland