# group tracker items
:0fh
* ^From: .*noreply@sourceforge.net
* ^Subject: .*-\/[0-9]+
* !^References:
| formail -i"References: <$MATCH@sourceforge.net>"

# group CVS changes
:0
* ^From: .*@users.sourceforge.net
* ^To: pisg-commits@lists.sourceforge.net
* ^Date: \/.*
* !^References:
{
  DATE=`date -d "$MATCH" '+%Y%m%d%H%M'`
  :0fh
  | formail -i"References: <pisg-commits-$DATE@sourceforge.net>"
}