2012-01-01 * Buy AAA
    A         1 AAA @ 1.00 EUR
    B                -1.00 EUR

2012-02-01 * Buy AAA
    A         1 AAA @ 2.00 EUR
    B                -2.00 EUR

test reg A -V -A
12-Jan-01 Buy AAA               A                          1.00 EUR     1.00 EUR
12-Feb-01 Commodities revalued  <Revalued>                 1.00 EUR            0
12-Feb-01 Buy AAA               A                          2.00 EUR     2.00 EUR
end test