Fix for empty paths.
Fix for empty paths.

whoinlee/topojson,btahir/topojson,ongerit/topojson,AlpinHologramm/topojson,tsl3su/WorldMap_Choropleth,mbostock/topojson,lyhpcha/topojson,ststeiger/topojson,koshlan/topojson,hcxiong/topojson,youprofit/topojson,studiowangfei/topojson