/// <summary>
/// Modifies the <see cref="CustomValidatorData"/> object to remove all values that should not be saved.
/// </summary>
/// <param name="sourceElement">A <see cref="ConfigurationElement"/> object at the current level containing a merged view of the properties.</param>
/// <param name="parentElement">A parent <see cref="ConfigurationElement"/> object or <see langword="null"/> if this is the top level.</param>
/// <param name="saveMode">One of the <see cref="ConfigurationSaveMode"/> values.</param>
protected override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode)
{
helper.HandleUnmerge(sourceElement, parentElement, saveMode);
}
