Error when unselecting last month

[Benraay]

there is no way to have an empty value in the month picker, tried on demo page the whole page is crashing when we unselect the selected month, we should be able to put a null or empty value and show "pick a month" default placeholder.

[nickeljew]

I actually did not take into consideration the way to set null or empty value on the picker panel. But for now, you may try to offer the option to "clear" the selection in your pick box.
The pick box element is not an embedded part of the picker component, so you can do whatever you want to make your pick box.

[Aghamyr]

Hi, that's also the solution I chose, giving a null value to the input displaying the currently selected date, so it looks like there is none selected.
But it would be nice to be able to pass null to the Picker component, because currently when opening the Picker after "clearing" the selection the picker will still show a month as selected while it shouldn't, and it could confuse the end user.

Edit: forgot to mention but currently is you unselect all the selected options in a picker(that allows multiple select), it will completely crash react as it throw and error with the map (the error comes from the demo site)

Uncaught TypeError: Cannot read property 'map' of null
    at List.render (demo.jsx:462)
    at finishClassComponent (react-dom.development.js:17295)
    at updateClassComponent (react-dom.development.js:17245)
    at beginWork (react-dom.development.js:18755)
    at HTMLUnknownElement.callCallback (react-dom.development.js:182)
    at Object.invokeGuardedCallbackDev (react-dom.development.js:231)
    at invokeGuardedCallback (react-dom.development.js:286)
    at beginWork$1 (react-dom.development.js:23338)
    at performUnitOfWork (react-dom.development.js:22289)
    at workLoopSync (react-dom.development.js:22265)
```