Issue in edit case in multiple selected dropdown.

[pritamsgvu]

Version of x-select:

3.1.1

Ember Version / Ember CLI Version:

Ember Version:
3.0.0
Ember CLI Version:
~3.0.2

Expected Behavior

When I am trying to edit the multiple selected checkbox it gives blank array. It should be like if the form field is set to ['10001','10002','10003'] in edit form and I click on 10002 it should be de-select and the remaining value ['10001','10003'] should go in the API request.

Actual Behavior

Currently, when I deselect any value then all value is going to blank.

Steps To Reproduce:

1. Try to use in edit form (Multiple select).
2. Try to de-select the element from edit form.
3. You will get a blank array instead of getting the filled array.
   Like this:
   ['1','2','3']

Now try to deselect 2 from the array. '2'
You should get ['1','3'] but you get [''] and if you double click on '2' you will get ['2'] in array.