[Koha] Tag 082, itemcallnumber

[Javed Sahil]

Hi all,

   In koha preferences,

    itemcallnumber:   082ab  works fine.

     itemcallnumber:   082cd also works fine.


    itemcallnumber:   082abcd  does not work.

Only first two subfields work with 082 tag.

I wan to use four subfields  abcd,
How it will be possible?