handle % as well (#823)
handle % as well (#823)

jkitching/anki,hssm/anki,sunclx/anki,Arthaey/anki,holycrepe/anki,socialpercon/anki-1,go38/anki,eduOS/anki,jakesyl/ruby-card,florianjacob/anki,Stvad/anki,jakesyl/ruby-card,weihautin/anki,weihautin/anki,kenjhim/anki,subfusc/anki,LucasCabello/anki,ospalh/libanki3,abeyer/anki,hssm/anki,xuewenfei/anki