Fix for deepSet().
Fix for deepSet().

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