[Pidgin] #4398: Fix showing user tunes in roster

[Pidgin]

#4398: Fix showing user tunes in roster
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  Reporter:  js     |       Owner:  nwalp
      Type:  patch  |      Status:  new  
  Priority:  minor  |   Milestone:       
 Component:  XMPP   |     Version:  2.3.1
Resolution:         |    Keywords:       
   Pending:  1      |  
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Changes (by seanegan):

  * pending:  0 => 1

Comment:

 We don't guarantee that all those fields will be set, which would make
 this result in a crash. Can you add checks for that?

 -s.

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Ticket URL: <http://developer.pidgin.im/ticket/4398#comment:1>
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