https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=31644 --- Comment #1 from Nick Clemens <nick@bywatersolutions.com> --- Created attachment 141066 --> https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=141066&action=edit Bug 31644: Check if subfield defined, not for truth To test: 1 - Define a new MARC Modification template with actions: Copy field 600$a to 942$0 2 - Define a new record like: LDR 00334nam a22001217a 4500 003 ff 005 20201102111604.0 008 201102b xxu||||| |||| 00| 0 eng d 040 _ _ ‡cvsd 100 1 _ ‡012345‡aKnuth, Donal Ervin‡d1938 245 _ _ ‡012345‡aThe aty of computer programming‡cDonald E. Knuth 600 _ 0 ‡042‡aComputer programming‡9462 3 - Modify this record using the template above 4 - Note that entire field is copied to 942 5 - Apply patch 6 - Now only subfield 0 is copied -- You are receiving this mail because: You are watching all bug changes. You are the assignee for the bug.