I investigated this issue in detail . This is actually to do with a concept involved in deleting a user created by an admin . In the latest master also , all the users created by an admin are not supported for deletion . So the need is to know the conditions under which a user created by an admin can be deleted . Currently both admin user and a user created manually have “ROOT” domain , account type as 1 and account as Admin . And we don’t allow deletion of system generated user I,e the Admin user himself.
I need to check out on the conditions here to resolve this issue and distinguish between the system generated Admin user and the Admin generated manual users .