restore the substract 1 to from_date, the right way is not to show a previous...
Jérome Perrin authored
restore the substract 1 to from_date, the right way is not to show a previous balance line if we do not have a from_date set

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@7076 20353a03-c40f-0410-a6d1-a30d3c3de9de
c3ef0a1a