At the moment, the OnChange even fires when:
- the user selects an item from the dropdown
- the user blurs the input
- the user presses enter in the input
The problem with the multiselect is that we have two extra actions:
- remove an already selected item from its own [x] button - OnChange does not fire even though the value changes
- clear all items with the ClearAll button - OnChange does not fire even though the value changes
- delete items with the backspace key