Index: openacs-4/packages/acs-tcl/tcl/site-nodes-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/site-nodes-procs.tcl,v
diff -u -r1.141.2.3 -r1.141.2.4
--- openacs-4/packages/acs-tcl/tcl/site-nodes-procs.tcl	26 Mar 2019 11:09:34 -0000	1.141.2.3
+++ openacs-4/packages/acs-tcl/tcl/site-nodes-procs.tcl	29 Mar 2019 14:42:06 -0000	1.141.2.4
@@ -456,7 +456,7 @@
 
         set cur_obj_ids [list]
         db_foreach $query_name {} {
-            if {$parent_id eq ""} {
+            if {$parent_id eq "" || ![nsv_exists site_node_url_by_node_id $parent_id]} {
                 # url of root node
                 set url "/"
             } else {