我有在选择NG-改变了同样的问题。运行时，但不是在第一次尝试。这种情况发生，如果容器选择NG出现假，然后开始内的执行更改为true。如果选择的父亲，初步显示（NG-显示= TRUE），它的工作原理以及改变选择。对于做任何解释？

I have the same problem with ng-change in the select. Runs, but not in the first attempt. This happening if the container select ng-show begins with false and then within the execution is changed to true. If the "father" of select, initially displays (ng-show = true), it works well change the select. Any explanation for this?