[Pidgin] #5401: No check for invalid path in pref.xml

[Pidgin]

#5401: No check for invalid path in pref.xml
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 Reporter:  gfnord        |       Type:  defect
   Status:  new           |   Priority:  minor 
Component:  pidgin (gtk)  |    Version:  2.4.1 
 Keywords:                |    Pending:  0     
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 First of all, sorry for probably not following all of the rules for bug
 reporting, but this is a rather simple issue, I think.

 I migrated Pidgin settings from one Windows machine onto the other. Copied
 the entire .purple folder and everything seemed fine. However, when I
 clicked on my avatar in order to change it (in the buddy list), the "Buddy
 Icon" window opened and hanged, caused entire Pidgin to became unusable.

 After some investigation, I found that in pref.xml, 'last_icon_folder' had
 value of a path from the old machine, non existing on the new machine. I
 erased the path i.e. left the value field empty and the problem was gone.

 The conclusion is that Pidgin does not check for the validity of the path
 stated in the pref.xml. This probably means that some other values/paths
 are not checked as well.

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Ticket URL: <http://developer.pidgin.im/ticket/5401>
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