P 1989/01/15 12:00:00 GAL $3

1990/01/01 Payee
    Expenses:Gas                100 GAL {=$2}
    Liabilities:MasterCard        $-200

P 1990/01/15 12:00:00 GAL $3

1990/02/01 Payee
    Expenses:Gas                100 FOO {$2}
    Liabilities:MasterCard        $-200

P 1990/02/15 12:00:00 FOO $3

1990/02/20 Payee
    Expenses:Gas                100 FOO
    Liabilities:MasterCard

test reg -V gas
90-Jan-01 Payee                 Expenses:Gas                   $200         $200
90-Feb-01 Payee                 Expenses:Gas                   $200         $400
90-Feb-20 Commodities revalued  <Revalued>                     $100         $500
90-Feb-20 Payee                 Expenses:Gas                   $300         $800
end test