TFS 2012 Scheduled Backups Wizard fails with ‘Permissions at the server scope can only be granted when the current database is master’

A customer reported an issue today he encountered while trying to configure the TFS 2012 Scheduled Backups Wizard.  During the validation checks he hit this error: Permissions at the server scope can only be granted when the current database is master This is a bug in the Scheduled Backups wizard in TFS 2012 (QU2 and…