[Typo3-shop] Right value for $basket->category?

[Jesper Weissglas]

Using tt_products 2.3.10, FEBELibrary 0.0.5, TableLibrary 0.0.6.

I am still struggling with my SOAP based bank integration.

I have now found a solution by commenting out the calls to 
finalizeOrder() and clearBasket() in the products_finalize activity of 
the basket class, and implementing everything having to do with 
finalization in the handlescript.

I have copied the finalization code from payment_DIBS.php (Lines 
194-196), but this code crashes now:

PHP Fatal error:  Call to a member function on a non-object in 
/var/www/typo3-3.8.0/typo3/ext/tt_products/lib/class.tx_ttproducts_finalize_div.php 
on line 176

This line accesses the $tt_products_cat argument, which has 
$basket->category as its parameter in the call.

$basket->category is never set in the DIBS template either, so I don't 
really know what it is supposed to be.

How can I get it set to the proper value?

/jesper