Merge pull request #1141 in BA/design from ~MOMEAK/design9.0:release/9.0 to release/9.0

* commit 'ad5140a23eed08222e66477e59f6d3f4b68c2701':
  REPORT-4004 [9.0一轮回归]打开设计器无新建模板出现如附件图片

designer_form/src/com/fr/design/parameter/ParameterPropertyPane.java

@@ -83,7 +83,7 @@ public class ParameterPropertyPane extends JPanel{
 	}
 
     public void setAddParaPaneVisible(boolean isVisible) {
-        if (isVisible == addParaPane.isVisible()) {
+        if (isVisible == addParaPane.isVisible() || formHierarchyTreePaneWrapper == null) {
             return;
         }
         if (isVisible && toolbarPane.hasSelectedLabelItem()) {