[Pidgin] #1860: Crash in bonjour when user signs on

[Pidgin]

#1860: Crash in bonjour when user signs on
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  Reporter:  astronouth7303  |       Owner:  datallah
      Type:  defect          |      Status:  closed  
  Priority:  minor           |   Milestone:  2.1.0   
 Component:  libpurple       |     Version:  2.0.2   
Resolution:  fixed           |    Keywords:          
   Pending:  0               |  
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Changes (by datallah at pidgin.im):

  * status:  new => closed
  * resolution:  => fixed
  * milestone:  => 2.1.0

Comment:

 (In [419695494db8c3c2d431a1faa3196ab0768213b0]) Prevent an invalid
 PurpleBuddy pointer from being used by cap when a non-saved (e.g. Bonjour)
 buddy logs off and back on.  It looks like the code used to (or was
 intended to) handle this scenario better. Fixes #1860.

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Ticket URL: </ticket/1860#comment:10>
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