REPORT-40606 【回归测试】表单模板如果未选择组件进行多次拖动，再切换模板就不行了，报错

designer-form/src/main/java/com/fr/design/mainframe/FormDesigner.java

@@ -1337,6 +1337,9 @@ public class FormDesigner extends TargetComponent<Form> implements TreeSelection
     // 当前选中控件可以上移一层吗？
     public boolean isCurrentComponentMovableUp() {
         XCreator creator = getSelectionModel().getSelection().getSelectedCreator();
+        if (null == creator) {
+            return false;
+        }
         XLayoutContainer container = (XLayoutContainer) creator.getParent();
         if (container == null || !container.supportInnerOrderChangeActions()) {
             return false;
@@ -1347,6 +1350,9 @@ public class FormDesigner extends TargetComponent<Form> implements TreeSelection
     // 当前选中控件可以下移一层吗？
     public boolean isCurrentComponentMovableDown() {
         XCreator creator = getSelectionModel().getSelection().getSelectedCreator();
+        if (creator == null) {
+            return false;
+        }
         XLayoutContainer container = (XLayoutContainer) creator.getParent();
         if (container == null || !container.supportInnerOrderChangeActions()) {
             return false;