Exception report fixes

Author: labkey-jeckels

src/org/labkey/targetedms/view/ReplicateSummaryWebPart.java

@@ -30,6 +30,7 @@ public ReplicateSummaryWebPart(ViewContext context, @Nullable Integer sampleLimi
         super("/org/labkey/targetedms/view/qcSummary.jsp", sampleLimit);
         setTitleHref(new ActionURL(TargetedMSController.QCSummaryHistoryAction.class, context.getContainer()));
         addClientDependency(ClientDependency.fromPath("Ext4"));
+        addClientDependency(ClientDependency.fromPath("TargetedMS/js/misc.js"));
         setTitle("Replicate Summary");
         setFrame(WebPartView.FrameType.PORTAL);
     }

webapp/TargetedMS/js/QCTrendPlotPanel.js

@@ -1476,10 +1476,10 @@ Ext4.define('LABKEY.targetedms.QCTrendPlotPanel', {
 
     plotBrushEvent : function(extent, plot, layers) {
         Ext4.each(layers, function(layer){
-            var points = layer.selectAll('.point path');
-            if (points[0].length > 0) {
-                var colorAcc = function(d) {
-                    var x = plot.scales.x.scale(d.seqValue);
+            const points = layer.selectAll('.point path');
+            if (points && points[0] && points[0].length > 0) {
+                const colorAcc = function(d) {
+                    const x = plot.scales.x.scale(d.seqValue);
                     d.isInSelection = (x > extent[0][0] && x < extent[1][0]);
                     return d.isInSelection ? 'rgba(20, 204, 201, 1)' : '#000000';
                 };