Martin Pengelly-Phillips

Value needs to be an array when setting value for a multiple select. So the error is correct.

I'm not sure what you mean. When using a single select the value should be scalar (not an array). Are you saying you want to support setting an array for...

That sounds like an interesting use case and not one I expected. Could you share your example use case? Internally we don't expect arrays and it might break in places...