REPORT-74887 新建决策报表，拖入第三方插件图表无法编辑

designer-chart/src/main/java/com/fr/design/mainframe/chart/ChartEditPane.java

@@ -411,7 +411,7 @@ public class ChartEditPane extends BasicPane implements AttributeChange, Prepare
         this.addAncestorListener(new ManageDsListenerRegisterListener(new ChangeListener() {
             public void stateChanged(ChangeEvent e) {
                 AbstractChartAttrPane attrPane = paneList.get(tabsHeaderIconPane.getSelectedIndex());
-                if (attrPane.isShowing()) {
+                if (attrPane.isShowing() && collection != null) {
                     attrPane.refreshChartDataPane(collection);
                 }
             }