The entry for The Nemesis of Napalabama states "Refers to: S 88229 (Glitter! Glitter! Little Diamonds!) (trapment cage)" There's nothing in S 88229 resembling a cage. Am I misunderstanding something or...?
This is funny, because those two stories were recently printed in German for the first time.
In both cases, the bad guys are trapped by a "cage" of things falling down around them - in one case it's bamboo sticks, in the other it's stalactites. And this is even referenced in a little textbox (i.e. it's intentional). However, I would say the reference is the wrong way round; "Glitter!..." has the characters saying "just like in Napalabama", so it's the story with the older code referring to the "newer" one.
Even The Gold Odyssey used the reference again, if I remember correctly.