Strange behaviour binding List items in onBeforeRendering method in console

I am binding items to a sap.m.List object inside an onBeforeRendering method.

I then call three console.log calls, as above:

• one for my List object;
• one on the property mAggregations.items;
• one on the method getItems()

The first console log shows the elements that I am looking for in mAggregations.items:

The second and third console logs show however empty arrays:

Can anyone explain what is going on here? I am trying to do some enrichment on the StandardListItems that are part of the List after the binding happens. (Attaching onPress methods, etc.) I am not clear why I can't seem to find them in the above example.