[Pidgin] #6523: Crash on file transfer if you delete file

[Pidgin]

#6523: Crash on file transfer if you delete file
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 Reporter:  dougal  |        Owner:  khc
     Type:  defect  |       Status:  new
Milestone:          |    Component:  MSN
  Version:  2.4.1   |   Resolution:     
 Keywords:          |  
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Comment(by qulogic at pidgin.im):

 (In [700a97f591b7815717184f6ea2fbee1de00577fc]):[[BR]]
 Calling purple_xfer_start may actually cancel the transfer (if the file
 was deleted, for example), so don't continue to do stuff if it was.

 Refs #6523, but doesn't yet fix it.

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Ticket URL: <http://developer.pidgin.im/ticket/6523#comment:11>
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