code: function(sChangeReason) {
  			if (!this._bDataRequested) {
  				this._bDataRequested = true;
  				this._onBeforePageLoaded(sChangeReason);
  			}
  
  			// set iItemCount to initial value if not set or no items at the control yet
  			if (!this._iLimit || this.shouldReset(sChangeReason) || !this._oControl.getItems(true).length) {
  				this._iLimit = this._oControl.getGrowingThreshold();
  			}
  
  			// send the request to get the context
  			this._oControl.getBinding("items").getContexts(0, this._iLimit);
  		}
docs: refresh items only for OData model.