Fix multiclass display.
Fix multiclass display.

nyimbi/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,paulovieira/tilemill-clima,tizzybec/tilemill,tilemill-project/tilemill,fxtentacle/tilemill,fxtentacle/tilemill,Zhao-Qi/tilemill,isaacs/tilemill,MappingKat/tilemill,MappingKat/tilemill,Zhao-Qi/tilemill,nyimbi/tilemill,nyimbi/tilemill,mbrukman/tilemill,paulovieira/tilemill-clima,florianf/tileoven,isaacs/tilemill,Zhao-Qi/tilemill,tilemill-project/tilemill,tilemill-project/tilemill,paulovieira/tilemill-clima,fxtentacle/tilemill,mbrukman/tilemill,florianf/tileoven,MappingKat/tilemill,paulovieira/tilemill-clima,nyimbi/tilemill,fxtentacle/tilemill,fxtentacle/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,tizzybec/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,nyimbi/tilemill,tizzybec/tilemill,mbrukman/tilemill,florianf/tileoven,tizzybec/tilemill,mbrukman/tilemill,MappingKat/tilemill,paulovieira/tilemill-clima,tizzybec/tilemill,mbrukman/tilemill,Zhao-Qi/tilemill,isaacs/tilemill,MappingKat/tilemill,Zhao-Qi/tilemill