REPORT-5659 [9.0三轮回归]单元格格式日期型，无法保存

designer_base/src/com/fr/design/gui/style/FormatPane.java

@@ -262,7 +262,7 @@ public class FormatPane extends AbstractBasicStylePane  implements GlobalNameObs
         if (i == -1) {
             this.textField.setSelectedItem(pattern);
         } else {
-            this.textField.setSelectedIndex(i);
+            this.textField.setSelectedItem(pattern);
         }
     }