see in the end of this page: http://pt.wikipedia.org/w/index.php?title=Hist%C3%B3ria&diff=617166&...
That is an addition by an anonymous of:
- [http://www.suapesquisa.com/historia Diversos temas de História]
What does that have to do with Min-nan or with the bot?
See again the end of page, the interwiki for minnan is not functioning, a link is appearing red. If you are saying that minnan and zh-min-nan are equivalent then this is a bug of the mediawiki.
For pt.wikipedia the interwikis for minnan (now zh-min-nan) are ok, do not I know as is to other wikipedias. What would be a work for the bots with the replace.py.
leonardo.