I have a Model "Item" that has a field "req_item", that's a nullable foreign key. Everything seems to working fine, but when the "req_item" field is null, the object is not displayed in django admin altogether. Here's the image for reference:
All the "req_item" filed values are null in DB at the moment, so none of the objects are displayed. If I assign a valid req_item value to an object in the DB, then only that object is displayed. How can I fix this issue. Here's my admin.py