I made a new debdiff using the correct distribution.
Also, please consider removing the 0.2.5-1 check in
debian/libmtp.preinst.in (debian stable has version 0.2.6.1-3):
if dpkg --compare-versions "$2" le 0.2.5-1 ; then
rm_conffile $PACKAGE /etc/hotplug/usb/$PACKAGE.usermap
rm_conffile $PACKAGE /etc/hotplug/usb/$PACKAGE.sh
fi
libmtp_0.3.7-3.1_proper_distribution.debdiff
Description: Binary data

