Amend service setup script

spk/wallabag/src/service-setup.sh

@@ -267,6 +267,9 @@ service_preuninst ()
         echo "Copying previous configuration and data from ${WEB_ROOT}"
         ${MKDIR} "${TEMPDIR}/config"
         rsync -aX "${CFG_FILE}" "${TEMPDIR}/config/" 2>&1
+        if [ -f ${IDX_FILE} ]; then
+            rsync -aX "${IDX_FILE}" "${TEMPDIR}/config/" 2>&1
+        fi
         if [ -d ${WEB_ROOT}/web/assets/images ]; then
             rsync -aX "${WEB_ROOT}/web/assets/images" "${TEMPDIR}/" 2>&1
         fi
@@ -370,11 +373,6 @@ service_restore ()
     fi
     ${RM} ${SYNOPKG_TEMP_UPGRADE_FOLDER}/${SYNOPKG_PKGNAME}
 
-    # Fix permissions
-    if [ ${SYNOPKG_DSM_VERSION_MAJOR} -lt 7 ]; then
-        chown -R ${WEB_USER}:${WEB_GROUP} ${WEB_ROOT}/upload
-    fi
-
     # migrate database
     if ! exec_php ${WEB_ROOT}/bin/console doctrine:migrations:migrate --env=prod -n -vvv > ${WEB_ROOT}/migration.log 2>&1; then
         echo "Unable to migrate database schema. Please check the log: ${WEB_ROOT}/migration.log"