[fixed]button can also trigger the click event when loading is true in ie9 (#12466)
[fixed]button can also trigger the click event when loading is true in ie9 (#12466)


zheeeng/ant-design,icaife/ant-design,icaife/ant-design,ant-design/ant-design,zheeeng/ant-design,ant-design/ant-design,elevensky/ant-design,zheeeng/ant-design,icaife/ant-design,elevensky/ant-design,zheeeng/ant-design,ant-design/ant-design,elevensky/ant-design,ant-design/ant-design,icaife/ant-design,elevensky/ant-design