[Pidgin] #1903: Crash with channel forwarding (NULL topic) and non-escaped topic

[Pidgin]

#1903: Crash with channel forwarding (NULL topic) and non-escaped topic
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 Reporter:  SuperMMX           |       Type:  defect
   Status:  new                |   Priority:  minor 
Component:  pidgin (gtk)       |    Version:  2.0.2 
 Keywords:  chat topic escape  |    Pending:  0     
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 * I have #pidgin-win in my old configuration, its topic is NULL and will
 forward to #pidgin. The NULL topic will cause an crash.
  * The topic of #gstreamer contains an "&", which should be escaped.

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Ticket URL: <http://developer.pidgin.im/ticket/1903>
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