On Wed, Feb 17, 2010 at 2:00 AM, Aryeh Gregor <Simetrical+wikilist@gmail.comSimetrical%2Bwikilist@gmail.com
wrote:
Without looking into it at all, I'd guess that the Wikipedia template relies on ParserFunctions features from later versions. Wikimedia sites are using version 1.3.0 of ParserFunctions. You could try getting that from trunk, using it with 1.15.1, and seeing if it works (it might only work with 1.16alpha).
ParserFunctions from trunk didn't work with mw115, I tried ParserFunctions
from trunk with a new mw trunk and the error remains as it is.