Merge pull request #5231 from StainlessStlRat/master

Fix crash in LineChartRenderer.swift when animating data set changes

Author: danielgindi

Source/Charts/Renderers/LineChartRenderer.swift

@@ -760,6 +760,12 @@ open class LineChartRenderer: LineRadarRenderer
 
         for high in indices
         {
+            // When updating the data set for the chart and then animating it, sometimes highlights are generated for the
+            // removed sets. This guard prevents OOB in the case where the new set has less data than the old set
+            if high.dataSetIndex >= lineData._dataSets.count - 1 {
+                continue
+            }
+            
             guard let set = lineData[high.dataSetIndex] as? LineChartDataSetProtocol,
                   set.isHighlightEnabled
             else { continue }