idPrefix is always `undefined_`

[adriano-di-giovanni]

render method of Form.editors.NestedModel defined this.nestedForm as follows:

  render: function() {
    //Get the constructor for creating the nested form; i.e. the same constructor as used by the parent form
    var NestedForm = this.form.constructor;

    ...

    //Wrap the data in a model if it isn't already a model instance
    var modelInstance = (data.constructor === nestedModel) ? data : new nestedModel(data);

    this.nestedForm = new NestedForm({
      model: modelInstance,
      idPrefix: this.id + '_',
      fieldTemplate: 'nestedField'
    });

Thus, idPrefix attribute for NestedForm options hash was always undefined_.

I changed the line idPrefix: this.id + ' ' to idPrefix: modelInstance.cid in order to have unique field ids.

I also built for distribution.

I think it is now correct. If it's not, please feel free to reject my pull request: you won't hurt my feelings :)

[adriano-di-giovanni]

I also changed version number and built again for distribution. I did it because I need to consume my fork with bower. Hope it helps.