Bug with ordering by name asc

When using order() to order by name in ascending direction (e.g. table.order([{ name: "position", dir: "asc" }]);), after that the first click on the header of the ordered column does nothing.
Note that when using order() to order by name in descending direction, or when ordering by name in ascending direction on initialization, this bug doesn't occur.
Here's a test case that demonstrates the bug: https://live.datatables.net/buxakafe/1/