Connections are left in an invalid state on interrupt

[Chronial]

Version: Starting with 3.0.0, introduced by this commit: 04784cb

Thanks to the github related feature, I noticed that this is in fact a duplicate of #360 from 2013 – it was fixed back then in 80baa99. But 04784cb (which was released as part of 3.0.0) accidentally reversed that change, so the bug is back.

How to reproduce

r = redis.Redis(host='localhost', port=6379, db=0)
try:
    print("Press Ctrl-C now")
    r.brpop(['nonexist'])
finally:
    print("This hangs:")
    r.set('status', 'down')
    print("We never get here")

[andymccurdy]

This was fixed, closing.