The sorter change cannot be described by any of the other enumeration values
The sort order was inverted. Comparisons that returned %GTK_ORDERING_SMALLER now return %GTK_ORDERING_LARGER and vice versa. Other comparisons return the same values as before.
The sorter is less strict: Comparisons may now return %GTK_ORDERING_EQUAL that did not do so before.
The sorter is more strict: Comparisons that did return %GTK_ORDERING_EQUAL may not do so anymore.
Describes changes in a sorter in more detail and allows users to optimize resorting.