#2555: handle invalid build ID in sigulsign_unsigned

[Fedora Release Engineering]

#2555: handle invalid build ID in sigulsign_unsigned
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 Reporter:  jkeating  |       Owner:  rel-eng at lists.fedoraproject.org
     Type:  defect    |      Status:  new                            
Milestone:            |   Component:  other                          
 Keywords:            |  
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 Right now the whole process dies if one of the n-v-rs don't match.  We
 should handle that better.

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Ticket URL: <https://fedorahosted.org/rel-eng/ticket/2555>
Fedora Release Engineering <http://fedorahosted.org/rel-eng>
Release Engineering for the Fedora Project