Handle CID-keyed fonts wrapped in a SFNT (with cmaps) correctly. * src/cff/cffload.c (cff_font_load): Pass `pure_cff'. Invert sids table only if `pure_cff' is set. * src/cff/cffload.h: Udpated. * src/cff/cffobjs.c (cff_face_init): Updated.