Comment 3 for bug 1960885

I just tested in 3.8, with library setting default classification set to 2-Dewey, and no default set in the Holdings Editor > Preferences.

On clicking Add Holdings, the Classification field was blank. Leaving the classification blank, I added a barcode and clicked Apply All and Save. The volume record saved, and Dewey populated the classification field. I was able to continue to create the item attributes and save the holdings records as expected.

However. Using the non-Angular Holdings Editor, as accessed via Item Status > Add (or Edit) Call Numbers / Call Numbers and Items, the classification displays as Generic.