-if [ "$1" = "upgrade" ] && ! dpkg-query -S #CENTRALCAT# >/dev/null 2>&1; then
+if test -f #CENTRALCAT# -a "(" "$1" = "upgrade" -o "$1" = "install" -a -n "$2" ")" &&
+ ! dpkg-query -S #CENTRALCAT# >/dev/null 2>&1; then
# If the dpkg-query command returns non-zero, the central catalog is
# not owned by any package. This is due to an old behaviour of
# debhelper. Now that file becomes a conffile. In order to avoid a
# question during installation, we remove the old non-conffile.
- rm -f #CENTRALCAT#
+ mv #CENTRALCAT# #CENTRALCAT#.old
fi