Custom 4 and Custom 5 cannot be A-Z ordered

[Macarena]

using 3.0.2.1131

Tag contents in Custom 4 and Custom5 is not possible to order. Ordering can be made on Custom[123] by clicking again on the name of the column, and then arrow appears. When trying with Custom[45] arrow appears one direction, but never changes again. It does not matter whether the tags are empty in all tracks or not. Custom[123] show changing arrow -- a try to reorder, even when all are empty. Is this wanted? What can I do to report more about the issue?

[PetrCBR]

Thanks. Will be fixed in next release.