Correction:
I'm using facet.field=lbrand and do get good results for eg: Geomag, GeoMag, GEOMAG all of them falls into "geomag". But when I'm filtering I do get strange results:brand:geomag gives numFound="0" lbrand:geomag gives numFound="57" (GEOMAG, GeoMag, Geomag) How should I redefine brand to let narrow work correctly?
Of course all of the words are the same (only case is different) TK