[Pidgin] #10115: segmentation fault from pidgin 2.6.1 when trying to add a yahoo buddy

[Pidgin]

#10115: segmentation fault from pidgin 2.6.1 when trying to add a yahoo buddy
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 Reporter:  rdrewd  |        Owner:  darkrain42
     Type:  defect  |       Status:  new       
Milestone:          |    Component:  libpurple 
  Version:  2.6.1   |   Resolution:            
 Keywords:          |  
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Comment(by sulabh.dev):

 This is because of a bug in glib ver < 2.15.0[[BR]]
 http://bugzilla.gnome.org/show_bug.cgi?id=501997

 I am adding in purple_normalize an if condition to return NULL, in case
 str passed is NULL

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Ticket URL: <http://developer.pidgin.im/ticket/10115#comment:9>
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