• I have searched the issues of this repository and believe that this is not a duplicate.

Version

3.7.3

Environment

mac os / chrome / react 16.4.1

Reproduction link

http://ant-design.gitee.io/components/date-picker-cn/

Steps to reproduce

1. set RangePicker's mode to ['month', 'month']
2. choose startMonth
3. choose endMonth

What is expected?

the rangepicker should fade out

What is actually happening?

it's still there.
when I click the blank space,it disappeared.

in the situation, only onPanelChange triggered.onChange, onCalendarChange does not triggered