Cursor position in ui-number-mask is incorrect

[jihin]

I am added ui-number-mask to my textbox. When I entering the number validation is working correctly the problem is the position of the cursor is last. When I need to enter 10, It needs 1 0 0 0. total 4 numbers. How to fix the issue

<input type="text" class="form-control input-sm"ng-model="ingredient.quantity" ui-number-mask ui-hide-group-sep placeholder="Qty">