BIND 10 #945: zonemgr crashes on some configs

[BIND 10 Development]

#945: zonemgr crashes on some configs
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                   Reporter:  jelte  |                 Owner:  jelte
                       Type:         |                Status:  assigned
  defect                             |             Milestone:  New Tasks
                   Priority:         |            Resolution:
  blocker                            |             Sensitive:  0
                  Component:         |           Sub-Project:  DNS
  Unclassified                       |  Estimated Difficulty:  0.0
                   Keywords:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by vorner):

 * owner:   => jelte
 * status:  new => assigned


Comment:

 Hello.

 I believe it has one problem. It is impossible to set some value to 0 (for
 example, if I didn't want jitter), the update would be ignored:

 {{{
 python3
 Python 3.1.3 (r313:86834, Mar 20 2011, 12:22:30)
 [GCC 4.5.2] on linux2
 Type "help", "copyright", "credits" or "license" for more information.
 >>> 0 or 5
 5
 >>>
 }}}

 Because 0 is false and expression like {{{new_config.get('reload_jitter')
 or self._reload_jitter}}} will take the original in this case.
 (This is the reason why perl 5.10 introduced the `//` operator, but I
 don't think python has something like this, we'll need conditional
 expressions here I think)

 It seems OK otherwise.

-- 
Ticket URL: <http://bind10.isc.org/ticket/945#comment:2>
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