[Pidgin] #8810: XMPP: Unable to unset topic (set topic to "")

[Pidgin]

#8810: XMPP: Unable to unset topic (set topic to "")
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 Reporter:  darkrain42  |        Owner:  darkrain42
     Type:  defect      |       Status:  closed    
Milestone:  2.6.0       |    Component:  XMPP      
  Version:  2.5.5       |   Resolution:  fixed     
 Keywords:  chat topic  |  
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Changes (by darkrain42 at pidgin.im):

  * status:  new => closed
  * resolution:  => fixed
  * milestone:  Patches Needing Review => 2.6.0


Comment:

 (In [941a367b55f4c8881ae4cfc3f70c346d574d9af5]):[[BR]]
 Fix XMPP prpl->set_chat_topic with an empty string (or NULL)

 The slash-command /topic displays the message with no arguments, but the
 set_chat_topic should not.

 Closes #8810.

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Ticket URL: <http://developer.pidgin.im/ticket/8810#comment:2>
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