For reference, `SortedRange.release` is
[documented](https://dlang.org/phobos/std_range.html#.SortedRange) as such:
"Releases the controlled range and returns it."
Wow thanks! I love functions that are named exactly as what they
do ;-) Seriously though, I still don't know what it is that it
does, and why and when it should be done, and when not.
What happens when a range is released?
What happens if a range is not released?
What happens if a range is released more than once?
And what does "controlled" imply here? In what way has
`SortedRange` control over the underlaying data? What can I do
and what can't I do to the underlying data as long as
`SortedRange` has control?
My failure to understand this function makes me fear I don't
understand `SortedRange` at all, and thereby don't understand how
to use `algorithm.sorting` properly.
Thanks!
-- Bastiaan.
