[Koha] Koha OAI-PMH item fields

Hi all! With the current version of Koha 16.05 as well as 3.22.x, I've enabled OAI-PMH, identified the archiveID, leave the OAI-PMH ConfFile blank. I see that Koha bug no. 12252 https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=12252 enables fetching of item data via the OAI-PMH interface, however when I take a look at the record by issuing /cgi-http://.../bin/koha/oai.pl?verb=GetRecord&metadataPrefix=marcxml&identifier=KOHA-OAI-TEST:3 I don't see 952 field. I searched the Koha community list but I am lead to bug 12252 and 13475. Am I missing something in here? Thanks in advance who can lead me in solving this problem. Cheers!