onChange prop isn't triggering for Multiselect

[kimkvn]

Hello!

I'm working with the MultiSelect component, but finding that the onChange prop isn't triggering. The rest of the event handlers seem to be functioning as intended.

The onChange prop for SingleSelect is still working, so I dug into the library and compared the onChangeBroadcasters. I copied over and am testing the example code in the demo: SingleSelect Basic, MultiSelect Basic

In singleSelectBroadcastChange when determining if prev and curr values are equal:

react-responsive-select/src/lib/onChangeBroadcasters/singleSelectBroadcastChange.ts

Line 12 in b40c30d

const shouldBroadcastChange = !isEqual(prevValue?.value, currValue?.value);

seems to check out because for example we compare object-key pairings

prevValue: 
{
  name: "carType1"
  text: "Subaru"
  value: "subaru"
}

currValue: 
{
  name: "carType1"
  text: "BMW"
  value: "bmw"
}

However in multiSelectBroadCastChange when looking at the equivalent boolean:

react-responsive-select/src/lib/onChangeBroadcasters/multiSelectBroadcastChange.ts

Line 12 in b40c30d

const shouldBroadcastChange = !prevOptions || !isEqual(prevOptions.values, currOptions.values);

We're comparing arrays, and not an object-key pairing

prevOptions: [{
    name: "make6"
    text: "Fiat"
    value: "fiat"
  },
  {
    name: "make6"
    text: "Suzuki"
    value: "suzuki"
  }]

currOptions:[{
    name: "make6"
    text: "Fiat"
    value: "fiat"
  },
  {
    name: "make6"
    text: "Suzuki"
    value: "suzuki"
  },
  {
    name: "make6"
    text: "Subaru"
    value: "subaru"
  }]

and so running isEqual(prevOptions.values, currOptions.values) seems to always evaluate to true, which then makes shouldBroadcastChange eval to false, which causes the onChange callback to not fire. Should we be evaluating isEqual(prevOptions, currOptions) instead? Wondering if this is a bug, or if I'm misinterpreting the logic here.

Thanks!