FastObjectListView with custom sorter does not abide by SortOrder.None

[PyroGenesis]

I have a FastObjectListView with its custom Sort() defined within its VirtualListDataSource. The issue I'm facing is that even if I set the SortOrder of the FOLV to SortOrder.None, it will still attempt to sort in ascending order whenever any addition / deletion occurs.

I saw that insertion and deletion of objects will always attempt to sort and I followed the issue to this block of code:

ObjectListView/ObjectListView/ObjectListView.cs

Lines 8357 to 8383 in 8a10cbd

	// Give the world a chance to fiddle with or completely avoid the sorting process
	BeforeSortingEventArgs args = this.BuildBeforeSortingEventArgs(columnToSort, order);
	this.OnBeforeSorting(args);
	if (args.Canceled)
	return;
	// Virtual lists don't preserve selection, so we have to do it specifically
	// THINK: Do we need to preserve focus too?
	IList selection = this.VirtualMode ? this.SelectedObjects : null;
	this.SuspendSelectionEvents();
	this.ClearHotItem();
	// Finally, do the work of sorting, unless an event handler has already done the sorting for us
	if (!args.Handled) {
	// Sanity checks
	if (args.ColumnToSort != null && args.SortOrder != SortOrder.None) {
	if (this.ShowGroups)
	this.BuildGroups(args.ColumnToGroupBy, args.GroupByOrder, args.ColumnToSort, args.SortOrder,
	args.SecondaryColumnToSort, args.SecondarySortOrder);
	else if (this.CustomSorter != null)
	this.CustomSorter(args.ColumnToSort, args.SortOrder);
	else
	this.ListViewItemSorter = new ColumnComparer(args.ColumnToSort, args.SortOrder,
	args.SecondaryColumnToSort, args.SecondarySortOrder);
	}
	}

When line 8358 executes, args.SortOrder will be set to SortOrder.Ascending even if the parameter order is set to SortOrder.None due to this block of code:

ObjectListView/ObjectListView/ObjectListView.cs

Lines 4099 to 4103 in 8a10cbd

	if (order == SortOrder.None) {
	order = this.Sorting;
	if (order == SortOrder.None)
	order = SortOrder.Ascending;
	}

Therefore, execution will reach line 8378 and the CustomSorter will be provided a SortOrder of Ascending instead of None.