https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=10382 --- Comment #53 from Marcel de Rooy <m.de.rooy@rijksmuseum.nl> --- Alex, Thx for your prompt corrections. If I add this as line 113 in your test: $item->ccode(undef)->store; the test still passes, which means that an original NULL is converted to empty string after removing the course. So theoretically speaking, this is not right. Practically maybe not. Please clarify. -- You are receiving this mail because: You are watching all bug changes.