I'm looking for a native way to prevent field from being empty. We have a Squad custom field and the users, when wanting to change squads, usually remove the current squad to then apply the new one. That can lead to two undesirable scenarios:
1: the field remains empty, by human error;
2: the field history will consider the change to/from empty as two changes, so it get confusing when analysing the squad changing data.
So I was looking for a way to prevent the field from being empty because that would never be the case, in this specific project.