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I'm having some trouble saving changes to individual models in a collection. Models that have been loaded (via a collection .reset()) are issuing a POST (as if they were new) instead of the expected PUT. Here's the approach I'm taking: AppView Loads the child collection via this.model.childcollection.reset(JSON DATA FROM SERVER); In it's render function, creates a new childview for each item in the collection and renders it: render: function() { var el = this.el; this.model.childcollection.forEach(function(s) { var view = new ChildView({ model: s }); el.append(view.render().el); }); return this; }, ChildView In one of its events it is changing some values of the underlying model and calling save: this.model.set( { ValueA: somevalue, ValueB: somevalue }, { error: function() { console.log("Error saving model"); }, success: function() { console.log("Model change saved"); } }); this.model.save(); Observations: POST (with no child id) is called instead of PUT (with child Id) Child elements have Ids set Can anyone tell me why this may be happening?

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