update_head $old, $tip, 'launder';
# no tree changes except debian/patches
runcmd @git, qw(rm --quiet --ignore-unmatch -rf debian/patches);
printf "# breakwater tip\n%s\n", $breakwater;
printf "# working tip\n%s\n", $tip;
update_head $old, $tip, 'launder';
# no tree changes except debian/patches
runcmd @git, qw(rm --quiet --ignore-unmatch -rf debian/patches);
printf "# breakwater tip\n%s\n", $breakwater;
printf "# working tip\n%s\n", $tip;