Details
Description
Noticed while testing something entirely unrelated that if you create a role "roleA" save, then attempt to create another role, you'll find that "roleA" isn't available in the roles list to assign to this new role. You first need to leave the roles page, then come back, and now the "roleA" will be available for selection in the new role's configuration
Haven't done any investigation to see if this occurs in releases prior to 3.14
Update
Also to note, this works the same in the reverse fashion. If you delete a role, that role is still available to be assigned to other roles until you revisit the role page