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

Reproduction link

Steps to reproduce

Place cursor into DatePicker input, press enter

What is expected?

The DatePicker calendar should disappear.

What is actually happening?

The DatePicker calendar does disappear, but the form is also submitting.

In Ant v3 pressing enter would toggle the calendar open/closed without submitting the form, see https://codesandbox.io/s/busy-gagarin-knbjw

In Ant v4 pressing enter still toggles the calendar open/closed, but it's also submitting the form. see https://codesandbox.io/s/angry-wright-selu2