Steps to reproduce:

1. go to the http://rzajac.github.io/angularjs-slider/
2. manually update first slider: min value to new position(e.g. 308), and max value to the same position (308). Numbers here is just an example, the restrictions are: min and max should be the same and it will be different from previous values

Expected result:
model values in inputs should match (in my example both equal to 308)

Actual result:
model values isn't match

only when you try to move another slider, model values will updated

Screenshot:

Workaround which I found for now is to force $digest using slideEnded event in parent scope, e.g.

    $scope.$on("slideEnded", function() {
        $scope.$digest();
    });