I wouldn't consider debian to be a standards organization.
Perhaps they should get their version sort adopted by POSIX?
But having algorithms that read:
use ascii sort for this field if after a character in this list [].
but use numeric sort for this field if after this list [].
but use an indeterminant sort if the field has unicode characters...
would hardly seem likely if it was a publish standard.
In the test cases I used, subsequent fields' sort methods
were determined by previous fields with a non-obvious
behavior.
That it is well documented on the net 'somewhere', is
part of the problem -- on a console, there was no
web browser nor internet access.