Description of problem:
New RPM installation

Version-Release number of selected component:
dnssec-trigger-0.12-15.fc21

Additional info:
reporter:       libreport-2.3.0
cmdline:        /usr/bin/python3 /usr/libexec/dnssec-trigger-script --update
executable:     /usr/libexec/dnssec-trigger-script
kernel:         3.18.9-200.fc21.x86_64
runlevel:       N 5
type:           Python3
uid:            0

Truncated backtrace:
dnssec-trigger-script:278:_commit:KeyError: 'c.f.ip6.arpa'

Traceback (most recent call last):
  File "/usr/libexec/dnssec-trigger-script", line 634, in <module>
    Application(sys.argv).run()
  File "/usr/libexec/dnssec-trigger-script", line 414, in run
    self.method()
  File "/usr/libexec/dnssec-trigger-script", line 563, in run_update
    self.run_update_connection_zones()
  File "/usr/libexec/dnssec-trigger-script", line 627, in run_update_connection_zones
    unbound_zones.add(zone, global_forwarders, secure=False)
  File "/usr/libexec/dnssec-trigger-script", line 250, in add
    self._commit(zone, set(servers), secure)
  File "/usr/libexec/dnssec-trigger-script", line 278, in _commit
    del self.cache[name]
KeyError: 'c.f.ip6.arpa'

Local variables in innermost frame:
name: 'c.f.ip6.arpa'
self: <UnboundZoneConfig(data={'': (set(), False)})>
secure: False
servers: set()

Potential duplicate: bug 1205864