User:Dan Pelleg/Sandbox/Nested refs

A reflist containing both a plain ref tag and a "magic word" ref tag with a nested ref tag in it works if the ref-in-a-ref is listed before the plain ref, and doesn't work if the ref-in-a-ref is listed after the plain ref (see table). Anyone know why? Is this a consistent feature? Should it be offered as a tip on a help page?