Prompt the user to select a certificate when multiple certificates match

This policy controls whether the user is prompted to select a client certificate when more than one certificate matches 'AutoSelectCertificateForUrls' (Automatically select client certificates for these sites).
If this policy is set to True, the user is prompted to select a client certificate whenever the auto-selection policy matches multiple certificates.
If this policy is set to False or not set, the user may only be prompted when no certificate matches the auto-selection.