AngularMaterial md-chips : Dont show selected item in <md-autocomplete>

I'm trying the <md-autocomplete> example from here md-chips

To prevent the selected items from coming inside <md-autocomplete> I've modified the querySearch function like this:

function querySearch (query) {
    var results = query ? self.searchData.filter(createFilterFor(query)) : [];
    var finalResults = [];
    angular.forEach(results, function(result) {
        if($scope.selectedItems.indexOf(result.name) < 0) {
            finalResults.push(result);
            updateSelectedItems(result);    
         }
    });
    return finalResults;
}

But my problem is that the control does not come inside this function once we select an item. Can someone please explain how to solve this ?

I found the solution from this documentation: md-autocomplete

We just need to add md-no-cache="true" for calling the querySearchfunction each time we search for a query item