I have a compiled directive that contains an angular-charts.js directive in it.

I've noticed that when the container of that chart has `ng-show` or `ng-hide` as an attribute, the chart wont update -- it just doesn't show at all.

[Here is a plunker that demonstrates this](http://plnkr.co/edit/HETR26hzpGDP2KCJEnCo?p=preview) (see `listeningComponent` in `scripts.js` directive)