When we try to close a basket from /cgi-bin/koha/acqui/booksellers.pl?supplier=baker (baker is just the vendor we are using in our example), it fails. It takes us to /cgi-bin/koha/acqui/basket.pl with this on the screen: New Basket () for If we go into the basket and close it from the menu, it works fine.
This seems to have been corrected as of 24.05.04.