Difference in callback arguments when publishing via "triggers" mechanism

triggers-differences.js

// CollectionView + ItemView example

var MySubView = Marionette.ItemView.extend({
    "triggers": {
        "click .save": "widget:saved"
    }
});

var MyCollectionView = Marionette.CollectionView.extend({
    "initialize": function(options) {
        this.bindTo(this, "itemview:widget:saved", this._onWidgetSaved, this);
    },
    "itemView": MySubView,
    "_onWidgetSaved": function(view) {
        // view is a reference to the ItemView in question
    }
});

// Layout + ItemView example

var MyLayoutView = Marionette.Layout.extend({
    "regions": {
        "one": ".region.one"
    },
    "onRender": function() {
        var subView = new MyItemView();
        this.one.show(subView);
        this.bindTo(subView, "widget:saved", this._onWidgetSaved, this);
    },
    "_onWidgetSaved": function(view) {
        // view is undefined... in fact, arguments is empty
    }
});