I noticed that the [[code]] block does not recognize the [[include]] tag over at the snippets wiki - or on my own wiki. For example, here, typing:
[[code]]
[[include template:spoons]]
[[/code]]
Produces:
[[include template:spoons]]
No problem. Doing the same over at the Snippets wiki or on mine produces:
[[div class="error-block"]]
Page to be included template:spoons can not be found!
[[/div]]
I am assuming this is some kind of bug, though it surprises me that this wiki seems to be immune…