Version in base suite: 1.9.0-3
Version in overlay suite: 1.9.0-3+deb13u1
Base version: fangfrisch_1.9.0-3
Target version: fangfrisch_1.9.0-3+deb13u1
Base files: fangfrisch_1.9.0-3_all.deb
Target files: fangfrisch_1.9.0-3+deb13u1_all.deb
Prerm files: lines which differ
if [ -z "${DPKG_ROOT:-}" "$DPKG_ROOT" ] && [ "$1" = remove ] && [ -d /run/systemd/system ] ; then