Calendar view="month" does not allow typing

[larry-s]

I'm submitting a ... (check one with "x")

[ X] bug report
[ ] feature request
[ ] support request => Please do not submit support request here, instead see https://forum.primefaces.org/viewforum.php?f=57

Current behavior
Screen goes blank.
There is an exception in the console: TypeError: "this.props.value.getDate is not a function".

Expected behavior
The typed value is accepted.

Minimal reproduction of the problem with instructions

• Navigate to https://www.primefaces.org/primereact/#/calendar
• Into the component Month/Year Picker type "1"

Please tell us about your environment:
Firefox browser

• React version:
  16.8.6

• PrimeReact version:
  PrimeReact 3.1.0 and 3.1.2

• Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]
  Firefox, Chrome