[Pidgin] #10119: report completion in libpurple File transfer API

[Pidgin]

#10119: report completion in  libpurple File transfer API
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Reporter:  kenshin  |        Type:  patch    
  Status:  new      |   Component:  libpurple
 Version:  2.6.1    |    Keywords:           
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 the current behavior of libpurple  reports completions of a file transfer
 too soon. the -completed signal is emitted before the sent bytes counter
 is updated which means anything relaying on that will get confused (the
 file transfer is indeed completed) but the number of transferred bytes
 will be incorrect at the moment of the signal emission.
 this patch aims to correct that.

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Ticket URL: <http://developer.pidgin.im/ticket/10119>
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