I get the following error when I try to deleted an order line with its associated biblio record: DBD::mysql::st execute failed: Duplicate entry '85533' for key 'PRIMARY' at /home/jcamins/kohaclone/C4/Biblio.pm line 3573. at /home/jcamins/kohaclone/acqui/addorder.pl line 270
Hm, I can't reproduce this.