Checkmk Werk 15208: users: fix error when changing the password for an existing user

ID: 15208 Title: users: fix error when changing the password for an existing user Component: Setup Level: 1 Class: New feature Version: 2.2.0i1 Prior to this werk, an error was raised when an user tried to change the password for an existing user if the DCD global setting was not configured. This werk resolves the issue.