mq: correct the use of super The first argument passed to super is supposed to be the class where it's being used, not self.__class__ - the two can be different when there's inheritance involved.

#!/bin/sh

hg init
python -c 'print "confuse str.splitlines\nembedded\rnewline"' > a
hg ci -Ama -d '1 0'
echo clean diff >> a
hg ci -mb -d '2 0'
hg diff -r0 -r1