Weird alphanumeric sort order behavior in Thunar

Apparently Thunar is using a alphanumeric sort order I have never seen before and I'm wondering if this is a "feature" or a bug.

For example, I have a number of files that start with the string sub-, followed by 3 alphanumerical characters, like this:

sub-003
sub-01Z
sub-0AB
sub-1AK
sub-1HJ
sub-2OP

This is actually the sort behavior I would expect. Sort by each position of the string. The strings only start to differ at position 4 0 is before 1 before 2 and that should define the order.

Thunar however seems to parse a consecutive amount of characters to a number and then sorts by that interpretation.

So it would do the following:

filename	"interpretation"
sub-0AB	sub-0AB
sub-1AK	sub-1AK
sub-1HJ	sub-1HJ
sub-01Z	sub-1Z
sub-2OP	sub-2OP
sub-003	sub-3

This is super weird.