Index: openacs-4/packages/fs-portlet/www/fs-portlet.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/fs-portlet/www/fs-portlet.tcl,v
diff -u -N -r1.27 -r1.28
--- openacs-4/packages/fs-portlet/www/fs-portlet.tcl	7 Aug 2017 23:48:12 -0000	1.27
+++ openacs-4/packages/fs-portlet/www/fs-portlet.tcl	8 Jan 2018 09:54:58 -0000	1.28
@@ -46,6 +46,9 @@
 set user_root_folder [dotlrn_fs::get_user_root_folder -user_id $user_id]
 set user_root_folder_present_p 0
 
+# this will be properly set by file-storage further on
+set root_folder_id ""
+
 if {$user_root_folder ne "" && $user_root_folder in $list_of_folder_ids} {
     set folder_id $user_root_folder
     set user_root_folder_present_p 1