Calendar Overlay doesnt open with current date after value update

[dattebayorob]

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[ x ] bug report
[ ] feature request
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Codesandbox Case (Bug Reports)
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https://codesandbox.io/embed/primereact-test-2twbo

Current behavior
when value state is null or empty, the calendar overlay will open with current month view

Expected behavior
After the inicial state get updated, the calendar overlay open with the new date

Minimal reproduction of the problem with instructions
https://codesandbox.io/embed/primereact-test-2twbo

The first calendar, starts with null and after component mount get updated to a valid date. When focus on input the calendar overlay opens in current month
The second one starts with a date and the behavior works great

Please tell us about your environment:
Arch Linux - Visual Code

• React version:
  16.9.0
• PrimeReact version:
  3.1.8
• 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 and chrome last versions
• Language: [all | TypeScript X.X | ES6/7 | ES5]
  ES6