remove data sorting for dual side bar chart

src/charts/dual-sidebar.js

@@ -158,15 +158,14 @@ export default (element, data, config) => {
     const plots = [leftPlot, rightPlot];
 
     const splittingIds = makeUnique(data.map(d => d[splitBy])).sort((a, b) => a > b ? 1 : -1);
-    const groupIds = makeUnique(data.map(d => d[groupBy])).sort((a, b) => a > b ? 1 : -1);
+    // removing sorting, the order in which the data comes in is fine.
+    const groupIds = makeUnique(data.map(d => d[groupBy]));
     const subGroupIds = groupIds.map(groupId => makeUnique(
       data
         .filter(d => d[groupBy] === groupId)
         .map(d => d[subGroupBy])
-        .sort((a, b) => a > b ? 1 : -1)
       )
     );
-
     splittingIds.slice(0, 2)
       .sort((a, b) => a > b ? 1 : -1)
       // Split data into split sides