Can't build package

In today's trunk, I can't build a package using “make package”.

At the end of the output is this error (paths edited for brevity):

«
# install the apparmor profile
install -d -m 755 build-area/maas-1.7.0~beta3+bzr3043/debian/tmp/etc/apparmor.d/dhcpd.d
install -m 644 build-area/maas-1.7.0~beta3+bzr3043/debian/maas-dhcp.apparmor \
     build-area/maas-1.7.0~beta3+bzr3043/debian/tmp/etc/apparmor.d/dhcpd.d/maas
dh_install --list-missing
cp: cannot stat ‘debian/tmp/debian/tmp/usr/share/maas/celeryconfig_cluster.py’: No such file or directory
dh_install: cp -a debian/tmp/debian/tmp/usr/share/maas/celeryconfig_cluster.py debian/maas-cluster-controller//usr/share/maas/ returned exit code 1
make[1]: *** [override_dh_auto_install] Error 2
»