diff -r 9e64afb38963 -r 0bd5b3099144 controls/DurationCellEditor.py
--- a/controls/DurationCellEditor.py	Wed Oct 11 10:34:45 2017 +0300
+++ b/controls/DurationCellEditor.py	Wed Oct 11 11:35:19 2017 +0300
@@ -142,4 +142,4 @@
                                        wx.SIZE_ALLOW_MINUS_ONE)
 
     def Clone(self):
-        return DurationCellEditor(self.Table)
+        return DurationCellEditor(self.Table, self.Colname)