[Pidgin] #2027: Cache log size history for buddy list sorting

[Pidgin]

#2027: Cache log size history for buddy list sorting
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  Reporter:  nomeata    |       Owner:  rlaager
      Type:  defect     |      Status:  new    
  Priority:  minor      |   Milestone:         
 Component:  libpurple  |     Version:  2.0.2  
Resolution:             |    Keywords:         
   Pending:  0          |  
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Comment (by mshkutkov):

 Replying to [comment:7 nomeata]:
 > When exactly do you recalculate the logsizes? At program start, or when
 the buddy first comes online?
 AFAIK, we recalculate log size when buddy appears in buddies list. It
 doesn't matter online or offline buddy and may happens at any time (for
 example after choosing "Show offline buddies")

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Ticket URL: <http://developer.pidgin.im/ticket/2027#comment:8>
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