balance assertions should not be based on position in file

[Johann Klähn]

Hi,
I have some problems with balance assertions ().
I keep most of my transactions regarding a specific account at the top
of the file. Some of these transactions are related to accounts that
are at the end of the file, sorted by date. When I now check against a
balance in any of those transactions, ledger will be confused by those
entries stated earlier in the file:

2009/10/11 * Start
    Eigenkapital:Test
    Aktiva:Bank         50€


; maybe from an !include statement:
2010/01/02 * This will break the assertion
    Ertrag:Verkauf
    Aktiva:Bank               500€

; ....

2009/10/11 * Here is the check
    Ertrag:Verkauf
    Aktiva:Bank   50€ = 100€

--> Error: Balance assertion off by -500€