zotero/translators — pull request #71 by adam3smith (2011-12-13 02:58:29+00:00)
Title: switch between iso 8859 and utf8 as needed

the OCLC folks had the great idea of switching between the to, depending on whether you "Show non-Roman Characters" - Simon had hardcoded iso8859 encoding into the translator to get letters with accents right, but that led to the issue here:
http://forums.zotero.org/discussion/19373/encoding-problem/#Item_7
this should fix non-Roman characters while keeping accents working.