Issue #1810148 by Matroskeen, tanc, ravi.shankar, AaronBauman, VladimirAus,...

Issue #1810148 by Matroskeen, tanc, ravi.shankar, AaronBauman, VladimirAus, jmickela, edurenye, hugronaphor, erikwebb, dawehner, Lendude, tim.plunkett, drupalninja, mohit_aghera, youfei.sun, Nick Hope, seanmrafferty, pyrello, interdruper, attisan, EclipseGc, Blanca.Esqueda: Grouped exposed taxonomy term filters do not work