Scope in modal not accessible from controller

[akarelas]

Suppose I open the modal with

$modal.open({
    scope: $scope,
    controller: 'ModalCtrl',
    templateUrl: 'partials/modal.html'
})

Then ModalCtrl $scope won't contain the scope variables created by the directives in the template. For example the variables filled-in by form elements.

The expected behaviour is that $scope in ModalCtrl is the same as the scope in the template.

[pkozlowski-opensource]

See #2143