Fix pie-bar problem

src/arc.js

@@ -31,9 +31,6 @@ c3_chart_internal_fn.updateAngle = function (d) {
         found = false, index = 0,
         gMin = config.gauge_min, gMax = config.gauge_max, gTic, gValue;
     $$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
-        if(!t || !d){
-            return;
-        }
         if (! found && t.data.id === d.data.id) {
             found = true;
             d = t;
@@ -41,9 +38,6 @@ c3_chart_internal_fn.updateAngle = function (d) {
         }
         index++;
     });
-    if(!d){
-        return;
-    }
     if (isNaN(d.endAngle)) {
         d.endAngle = d.startAngle;
     }

src/core.js

@@ -304,6 +304,7 @@ c3_chart_internal_fn.initWithData = function (data) {
 
     // export element of the chart
     $$.api.element = $$.selectChart.node();
+    $$.updateAndRedraw();
 };
 
 c3_chart_internal_fn.smoothLines = function (el, type) {