[vdr] why a StartDecrypting in cDevice::Detach(cReceiver *Receiver) ?

[jlacvdr]

Hi,

In many versions of vdr we can found  camSlot->StartDecrypting()  in
the function Device::Detach(cReceiver *Receiver).
I'm surprised about this StartDecrypting, I think it should be StopDecryptiong.

If someone (klaus ?) can explain this ?
Thanks in advance for your reply.

Regards,

JLac