ankidroid/Anki-Android — pull request #526 by agrueneberg (2014-10-07 02:23:04+00:00)
Title: Detect invalid ease for current card

How to reproduce:
- set gesture for `Answer button 4`
- find a relearning card during review
- trigger gesture
- card will be answered with ease 4, even though that's not an option

This test is also in Anki: https://github.com/dae/anki/blob/master/aqt/reviewer.py#L265