Index: openacs-4/packages/categories/www/cadmin/object-map.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/categories/www/cadmin/object-map.tcl,v
diff -u -N -r1.9 -r1.10
--- openacs-4/packages/categories/www/cadmin/object-map.tcl	19 Jan 2018 14:50:04 -0000	1.9
+++ openacs-4/packages/categories/www/cadmin/object-map.tcl	25 Feb 2018 15:05:17 -0000	1.10
@@ -30,7 +30,7 @@
 template::multirow create mapped_trees tree_name tree_id \
     site_wide_p assign_single_p require_category_p widget view_url unmap_url edit_url
 
-db_foreach get_mapped_trees "" {
+db_foreach get_mapped_trees {} {
     set tree_name [category_tree::get_name $tree_id $locale]
     if {$subtree_category_id ne ""} {
       append tree_name " :: [category::get_name $subtree_category_id $locale]"
@@ -70,7 +70,7 @@
         flags {
 	    display_template {
 		(<if @mapped_trees.site_wide_p;literal@ true>#categories.#SiteWide_tree#, </if>
-                 <if @mapped_trees.widget@>@mapped_trees.widget@, </if>
+                 <if @mapped_trees.widget@ ne "">@mapped_trees.widget@, </if>
 		 <if @mapped_trees.assign_single_p;literal@ true>#categories.single#, </if><else>#categories.multiple#, </else>
 		 <if @mapped_trees.require_category_p;literal@ true>#categories.required#) </if><else>#categories.optional#) </else>
 	    }