Exit subscribe using KeyboardInterrupt isn't working always

[albertoaer]

I have found an unexpected behavior using the Redis PUB/SUB feature within the client.

KeyboardInterrupt only works after a message has been received by the subscription, until that happens the console will remain frozen, unable to exit the subscription mode and type another command.

I don't know whether it is the expected behavior or not, so I give this feedback.

[laixintao]

Sounds like a bug, let me try to reproduce first. thanks for reporting.