Ion-checkbox inside anchor tag

Using ionic 1 I'm having problems with creation <ion-checkbox> elements inside an <a> tag.

I know it's best to avoid nesting objects inside an anchor tag, however this is currently something I cannot do anything about.

I've made a fiddle to demonstrate. If you remove the anchor tag, everything works.

How can I solve this problem, without removing the <a> tag?

I've tried using the ng-click directive to $event.stopPropagation(), but that doesn't solve the problem.