Bug fix: Keep OP/Voice correct when someone changes nick

TODO.mkdn

@@ -21,7 +21,8 @@ Bugs
 * When using mood sort, scroll position jumps to last selected chum
 * When switching chumhandles, OP doesn't appear to retain OP status (though they do)
 * When left for a really long time, animations slow down pesterchum
-* Openning resets appearance of OP/voice for anyone that become OP/voice after you joined a memo
+* Openning userlist resets appearance of OP/voice for anyone that become OP/voice after you joined a memo
+* No sign of error if regexp quirk is malformed (not enough captured groups, etc)
 
 Mac Bugs
 --------

memos.py

@@ -765,6 +765,18 @@ class PesterMemo(PesterConvo):
                     self.times[h].removeTime(t.getTime())
                 if update == "nick":
                     self.addUser(newnick)
+                    newchums = self.userlist.findItems(newnick, QtCore.Qt.MatchFlags(0))
+                    for nc in newchums:
+                        for c in chums:
+                            if c.op:
+                                nc.op = True
+                                icon = PesterIcon(self.mainwindow.theme["memos/op/icon"])
+                                nc.setIcon(icon)
+                            if c.voice:
+                                nc.voice = True
+                                icon = PesterIcon(self.mainwindow.theme["memos/voice/icon"])
+                                nc.setIcon(icon)
+                    self.sortUsers()
         elif update == "kick":
             if len(chums) == 0:
                 return