Ng-init problem inside ion-slide-box nightly

ionic-v1
1

ng-init was working before but now i have tried many ways and nothing: this is inside an ion-slide-box in nightly

  <div ng-if="productos[0].producto_ispack == 0" ng-model="selection.id_product_actual" ng-init="selection.id_product_actual='{{productos[0].producto_id}}'" class="escoger-producto icon-right">
                  {{productos[0].producto_nombre}}                              
                                      
</div>

now its set like “{{producto[0].producto_id}}” string instead of the actual id.

thanks.