[DatePicker] autoOk prop makes picker not accessible in Firefox

[ryanmurakami]

Description

When the autoOk prop is added to a DatePicker component, keyboard accessibility is messed up with the DatePicker. When pressing the space key on a date picker element, the modal opens and then immediately closes, selecting the current day.

Link to a gist or code sample where the issue can be reproduced

https://react-md.mlaursen.com/components/pickers/date

• Use Firefox
• Navigate to the Auto Ok date picker element
• Press the space key
• Date modal will open and close immediately

Version

• React - 15.6.2
• React-MD - 1.2.13
• Browser - Firefox (Works correctly in Chrome)

[mlaursen]

I think this will be related to and fixed with #370, but I'll keep this open as well for a reminder.