2.4.3

• 修复当自定义 Tree 节点高度时，allow-drop 不能正常工作的问题，#11797
• 现在 Form 的 clearValidate 方法支持传入参数，指定需要清空校验结果的 FormItem，#11821
• 新增 MessageBox 的 distinguishCancelAndClose 属性，#11831

• Fixed allow-drop not working properly when Tree nodes have a custom height, #11797
• Now you can pass a parameter to the clearValidate method of Form, specifying which FormItems' validation results need to be cleared, #11821
• Added distinguishCancelAndClose attribute for MessageBox, #11831