gnupg: Scdaemon RESTART

 
 6.6.14 Perform a RESTART operation
 ----------------------------------
 
        RESTART
 
    Restart the current connection; this is a kind of warm reset.  It
 deletes the context used by this connection but does not actually reset
 the card.
 
    This is used by gpg-agent to reuse a primary pipe connection and may
 be used by clients to backup from a conflict in the serial command; i.e.
 to select another application.