more robust reload

lam-packaging/debian/postrm

@@ -37,12 +37,14 @@ if [ -f /usr/share/debconf/confmodule ]; then
 		set -e
 		for server in $restart; do
 				server=${server%,}
-				if [ `which invoke-rc.d` ]; then
-						invoke-rc.d $server reload
-				elif [ `which service` ]; then
-						service $server reload
-				elif [ `which systemctl` ]; then
+				if [ `which systemctl` ]; then
+				    if [ "`systemctl is-active ${server}.service`" = "active" ]; then
 						systemctl reload ${server}.service
+				    fi
+				elif [ `which invoke-rc.d` ]; then
+					invoke-rc.d $server reload
+				elif [ `which service` ]; then
+					service $server reload
 				fi
 		done
 	fi