xt_recent broken in kernel 3.19.0

[Chris Vine]

With kernel 3.19.0, the following iptables rule, where SSH_TRIES is set
to 4:

  iptables -D SSH_CHAIN -m conntrack --ctstate NEW \
    -m recent --update --seconds $SSH_LOGIN_PERIOD --hitcount $SSH_TRIES -j DROP

generates this error message in syslog:

  kernel: xt_recent: hitcount (4) is larger than packets to be
  remembered (4) for table DEFAULT

and the rule fails to install in the table.  No error is generated with
kernel 3.18.6.

Chris
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