wix: scrolling is not reseted anymore when clicking on a group on contact list

frontends/wix/contact_list.py

@@ -147,6 +147,7 @@ class ContactList(wx.SimpleHtmlListBox, QuickContactList):
         """Called when a contact is selected."""
         data = self.getSelection()
         if data == None: #we have a group
+            first_visible = self.GetVisibleBegin()
             group = self.GetClientData(self.GetSelection())
             erased = self.__eraseGroup(group)
             if not erased: #the group was already erased, we can add again the contacts
@@ -156,6 +157,7 @@ class ContactList(wx.SimpleHtmlListBox, QuickContactList):
                 for contact in contacts:
                     self.Insert(self.__presentItem(contact), id_insert, contact)
             self.SetSelection(wx.NOT_FOUND)
+            self.ScrollToLine(first_visible)
             event.Skip(False)
         else:
             event.Skip()