1 payment, two jobs - job report error

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not sure whether it's a bug or I'm just doing it wrong?

I receive 1 payment to cover 2 due invoices. They belong to 2 different
jobs of one customer.

Now when I make job reports for each of these jobs the total payment amount
is being listed on each report (which results into a big credit Total for
each job because the amount due to job A is being calculated in the reports
for job B and vice versa). So these reports are plain wrong.

After I did "assign payment" on the Journal entry for this payment 2 splits
where created by GC, so in generally it seems to be 'aware' of the
situation.

bug or did I make it wrong?