Thread:Extension talk:ParserFunctions/Use comma as decimal separator/reply (2)

For the record, for the separators for Portuguese (pt and pt-BR) are defined on the following line of languages/messages/MessagesPt.php (resp. MessagesPt_br.php) $separatorTransformTable = array( ',' => "\xc2\xa0", '.' => ',' );

The problem seems to be analogous to 19412 (which is about the  parser function).