[Pidgin] #5205: Crash on GTK < 2.6 when topic==NULL in pidgin_conv_update_fields()

[Pidgin]

#5205: Crash on GTK < 2.6 when topic==NULL in pidgin_conv_update_fields()
---------------------------+------------------------------------------------
  Reporter:  dseven        |       Owner:        
      Type:  patch         |      Status:  closed
  Priority:  minor         |   Milestone:  2.4.2 
 Component:  pidgin (gtk)  |     Version:  2.4.0 
Resolution:  fixed         |    Keywords:        
   Pending:  0             |  
---------------------------+------------------------------------------------
Changes (by resiak at soc.pidgin.im):

  * status:  new => closed
  * resolution:  => fixed
  * milestone:  => 2.4.2

Comment:

 (In [f04d31e96f7a749f54961a71f7a4e0aa2fc0c7ac]) Modified version of a
 patch from "dseven" to prevent crashing on NULL topics
 with prehistoric Gtk.  Fixes #5205.  Thanks!

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Ticket URL: <http://developer.pidgin.im/ticket/5205#comment:2>
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