BUG: The LargeRangeSlider was not working properly when embedded in a List.  This fix mirrors the changes made for Traits2 in changeset [17363].
BUG: The LargeRangeSlider was not working properly when embedded in a
List.  This fix mirrors the changes made for Traits2 in changeset
[17363].


geggo/pyface,brett-patterson/pyface,geggo/pyface,pankajp/pyface