Question about dynamic references in assembly environment

By looking at the pictures, is there any reason why dynamic reference behave a little different when creating Cut Extrude compared to creating Extruded Boss. Everything else is the same, sketch, sketch plane......but when I hover the Cut Extrude feature it references to Boss-Extrude1 of Base2....and when I create Extruded Feature and then hover it to see references, it does not reference Boss-Extrude1 of Base2.

I know that it is not big deal of a question, but I'm just curious.

Thanks.

SolidworksAssemblies