Only clear hoverValue when picker is open
Only clear hoverValue when picker is open

Fix #6364

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