Two taps required on input fields when multiple $ionicModal instances in view

Open this CodePen in Safari on iOS 9:

When using Safari on iOS 9 it takes two taps to enter an input field and focusFirstInput does not work.

This appears to occur when there is more than one $ionicModal present in a view, as I could not reproduce with one $ionicModal.

On Chrome desktop this issue is not present.

I am experiencing the same issue. Have you found a workaround that works? I’ve tried multiple focus directives without success.