I experienced some strange error during the import of bank statements.
The process runs just fine till it comes to the point where the SvrProcess commits the transaction. It caused a PSQL error telling me that some ids does not exist.
I took a look at the code and noticed that MBankAccount.get(ctx,id) can create a new MBankAccount with trx null.
Once i loaded the MBankAccount via new MBankAccount(ctx,id,trx), the error was gone. I attached my fix but i guess it could also be done by extending MBankAccount.get(ctx,id) with the trx name.