Both when creating and renewing an account, if the username contains a dot, the program returns error "Invalid character".
This is not really a problem when creating a new account, but it means that usernames containing a dot cannot be renewed by umanager.
Usernames with dots are no longer supported for LCM cluster for different reasons.
This is not a bug, but it's a design choice made by the team at the beginning of the project.
Both when creating and renewing an account, if the username contains a dot, the program returns error "Invalid character". This is not really a problem when creating a new account, but it means that usernames containing a dot cannot be renewed by umanager.