Composer Security>Users: Entered names are case sensitive. Creating duplicates.
We have a mashup that is connected to Active Directory for authentication. When a user enters their log in credentials we have noticed that Security>Users is case sensitive. It will create a duplicate user name if the user fat fingers the shift key. For example:
john.smith (actual log in name)
John.Smith (Mistake)
JOHN.SMITH (Mistake)
When this occurs it prevents the user from accessing the mashup application until the duplicate user name is removed. Does Composer have a OOTB function that prevents this occurring or do we need to develop a custom solution to prevent this from occurring?

