Range DatePicker throws an error on onChange handler

[the-dr-lazy]

Describe the bug
Range date picker throws an error on onChange handler. There is no issue with single day nor multiple days selector.

Reproduced Version on CodeSandbox
Here it is on CodeSandBox

Expected behavior
It should run the onChange handler without throwing any exception.

[Kiarash-Z]

@thebrodmann First off, it seems that CodeSandbox isn't throwing the intended error. If you check this on your local machine it would throw an error like this:

That's because of the initial value of { from: undefined, to: undefined } instead of { from: null, to: null }, and why is that happening? because I deep clone value using JSON.parse(JSON.stringify(obj)), and interestingly, JSON.stringify will omit keys with the value of undefined when converting them to string, but if they have a value of null it will keep them. This behavior can be changed by changing deepCloneObject utility though, but I'm not quite sure for support for value undefined for range value keys instead of null.

[the-dr-lazy]

I'm not quite sure for support for value undefined for range value keys instead of null.

It causes a breaking change. I think we should change the TypeScript type definition to just allow null type for range date selector.
I'm going to close this issue as it's intentional behavior.
Thank you.

[Kiarash-Z]

@thebrodmann have you checked v1.1.1? now it support { from: undefined, to: undefined }