Knockoutjs - function inside viewmodel causing undesirable recursion - serialization

Question

In my Knockout view model I have a Save() function which sends a jQuery POST request. Inside this POST request is a call to ko.toJS(this).
Whenever I call this Save function the browser becomes unresponsive and eventually tells me that there's too much recursion. Upon debugging (by using breakpoints), I found that when I call toJS() it appears to do some degree of cloning of the object, and in doing this cloning it calls the Save() function, which in turn calls toJS()... and there's the recursion.
Why exactly does this happen, and is there a way to avoid it without using toJSON()?
[I have another question regarding toJSON, and which explains why I don't want to use it.]
For the sake of completeness, here is my view model.
function vmDictionary(dict) {
if (dict === null || dict === undefined) {
return;
}
var self = this;
// directly-assigned variables
self.Concepts = new vmConcepts(dict.Concepts);
self.Deleted = ko.observable(dict.Deleted);
self.Description = ko.observable(dict.Description);
self.IncludeInSearch = ko.observable(true);
self.ID = ko.observable(dict.ID);
self.Languages = ko.observableArray(dict.Languages);
self.LastUpdate = new vmChangeRecord(dict.LastUpdate);
self.Name = ko.observable(dict.Name);
self.Public = ko.observable(dict.Public);
self.TemplateName = function(observable, bindingContext) {
return "dictionary-template";
};
// computed variables
self.PublicText = ko.computed(function() {
return sp.Utils.Localize(self.Public
? "Public"
: "Private");
});
// exposed functions
self.Save = function () {
$.ajax({
data: ko.toJSON(self),
dataType: "json",
type: "POST",
url: [...],
statusCode: {
200: function (response) {
console.log(response);
}
},
error: function (xmlHttpRequest, textStatus, errorThrown) {
console.log(xmlHttpRequest);
console.log(textStatus);
console.log(errorThrown);
}
});
};
}
UPDATE: added the entire view model (above).

Answer 1

You must be doing something wrong, works in a little fiddle for me
http://jsfiddle.net/brN9s/
ViewModel = function() {
this.someData = ko.observable("Test");
this.dto = ko.observable();
};
ViewModel.prototype = {
Save: function() {
this.dto(ko.toJS(this));
}
};
var viewModel = new ViewModel();
ko.applyBindings(viewModel);
viewModel.Save();