Change detection issue when the last item is deselected in multiselect mode

[ghost]

1. Go to https://ng-select.github.io/ng-select#/multiselect.
2. In "Hide selected elements" demo select all items.
3. Deselect any item.
4. The dropdown should appear but it doesn't.
5. Deselect one more item. The dropdown will appear with two elements.

Note: if closeOnSelect is false the issue is more obvious.

More Info

ng-select version: 1.1.4
browser: Google Chrome
reproducible in demo page: Yes.

[anjmao]

@Maxkorz Hi,
Thanks for reporting, good catch.

[varnastadeus]

@anjmao In this case I don't think it should open at all, and it worked that way before.

[ghost]

@varnastadeus looks like $event.stopPropagation() doesn't work. But that's not the issue here.