In versions 20.05 and 20.11 If a PA_CLASS authorized value has not been defined, when the user creates a new patron attribute type, the "Class" field is now a free text box. In previous versions, this field would be a blank dropdown. If the user writes in a "Class" when creating an attribute, Koha is recognizing the grouping on the patron account. However, writing in a Class on the patron attribute type screen does not automatically create an authorized value for the PA_CLASS. If an authorized value for PA_CLASS has been defined, then that is the only option for a user to select when creating a patron attribute type. In previous versions, the user would still have the ability to select the "blank" option from the Class dropdown (if that attribute is not being categorized into a class). Now, if a PA_CLASS value exists, the user must put the attribute into a Class. To Recreate: 1. Make sure no PA_CLASS values are previously defined 2. Administration › Patron attribute types > New Patron Attribute Type 3. Scroll down to the last field, "Class" 4. Observe that the Class box allows for free text 5. Save your patron attribute 6. Administration › Authorized values > select PA_CLASS 7. Observe that the free text class you created is not an authorized value 8. Now create an authorized value for PA_CLASS 9. Go back to Administration › Patron attribute types > New Patron Attribute Type 10. Scroll down to the last field, "Class" and observe that the PA_CLASS value you just created is your only option in the dropdown (no blank option) - which groups your patron attribute type into a class
I verified that the blank option is now back in the pull down if using an AV :)