BIND 10 #2879: notify_out doesn't handle response to NOTIFY correctly

[BIND 10 Development]

#2879: notify_out doesn't handle response to NOTIFY correctly
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                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:         |             Milestone:  Next-Sprint-
  defect                             |  Proposed
                   Priority:         |              Keywords:
  medium                             |             Sensitive:  0
                  Component:         |           Sub-Project:  DNS
  xfrout                             |  Estimated Difficulty:  0
               CVSS Scoring:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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 I've noticed some odd log handling in notify lettuce tests.
 See my comment in http://bind10.isc.org/ticket/1938#comment:15

 It looks like `_zone_notify_handler` doesn't correctly cancel the
 completed notify transaction after `_EVENT_READ`, and each response
 immediately triggers another notify.  It's obviously wrong and should
 be fixed.

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Ticket URL: <http://bind10.isc.org/ticket/2879>
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BIND 10 Development