Closed Issue: MaskedEditExtender's ClearMaskOnLostFocus property causes problems for MaskedEditValidator when set to false [23023]

When the ClearMaskOnLostFocus property is set to false on a MaskedEditExtender and a MaskedEditValidator is attached, the validator incorrectly attempts to validate the value of the "empty value mask" when no value has been entered by the user.
Comments: Issues is closed as it is fixed with April 2013 release.