DCPorter Override...

gistfile1.js

/**
 * This is the DCPorter Memory fix, currently hosted at 
 * 
 * https://github.com/sproutcore/sproutcore/pull/844
 */

SC.Binding.isDestroyed = NO;

SC.Binding.destroy = function() {
	// If we're already destroyed, there's nothing to do.
	if (this.isDestroyed)
		return;

	// Disconnect the binding.
	this.disconnect();

	// Mark it destroyed.
	this.isDestroyed = YES;

	// Aggressively null out internal properties. (The binding remains in some queue that I can't find just now,
	// which attempts to reconnect this binding if the property paths are left intact.)
	this._bindingSource = null;
	this._toPropertyPath = null;
	this._toPropertyKey = null;
	this._toRoot = null;
	this._toTarget = null;
	this._fromPropertyPath = null;
	this._fromPropertyKey = null;
	this._fromRoot = null;
	this._fromTarget = null;
	this._toObserverData = null;
	this._fromObserverData = null;

	// Removes from the change queue.
	SC.Binding._changeQueue.remove(this);

	// Cancel any pending changes.
	this._changePending = NO;
};

SC.tupleForPropertyPath = function(path, root) {
	// if passed nothing, return nothing.
	if (SC.none(path))
		return null;

	// if the passed path is itself a tuple, return it
	if (typeof path === "object" && (path instanceof Array))
		return path;

	// find the key.  It is the last . or first *
	var key;
	var stopAt = path.indexOf('*');
	if (stopAt < 0)
		stopAt = path.lastIndexOf('.');
	key = (stopAt >= 0) ? path.slice(stopAt + 1) : path;

	// convert path to object.
	var obj = this.objectForPropertyPath(path, root, stopAt);
	return (obj && key) ? [ obj, key ] : null;
};

SC.Object.prototype.destroy = function() {
	if (this.get('isDestroyed'))
		return this; // nothing to do
	this.set('isDestroyed', YES);

	// destroy any mixins
	var idx, inits = this.destroyMixin, len = (inits) ? inits.length : 0;
	for (idx = 0; idx < len; idx++)
		inits[idx].call(this);

	// disconnect all bindings
	this.bindings.invoke('destroy');
	this.bindings = null;

	return this;
};