[Koha] stack number cannot be stored in Koha 21.05

Hi In our library we use Koha 21.05.02 on Debian GNU/Linux 11. As we found out it not possible to store the content of field 952$j (stack / shelving control number) in the Koha database. I have also tested this on my demo installation with Koha 21.05.00 and on another demo installation with Koha 21.05.04 - everywhere the same. Can anyone please confirm this? If yes, I will open a bug report. Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik@adminkuhn.ch · W www.adminkuhn.ch