ref: 542731b6a936829de3d324823035a7b64719c053
parent: 7f44c0aab0dcdba44b7bb4843f348fd4b8726edc
author: Tanguy Fautre <tanguy@fautre.com>
date: Wed Feb 12 17:24:14 EST 2020
Fix bad logic when selecting 1-N GRP file (and another warning pointing to this mistake).