Index: openacs-4/packages/xowiki/tcl/folder-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/folder-procs.tcl,v
diff -u -r1.55.2.12 -r1.55.2.13
--- openacs-4/packages/xowiki/tcl/folder-procs.tcl	28 Jun 2019 10:30:27 -0000	1.55.2.12
+++ openacs-4/packages/xowiki/tcl/folder-procs.tcl	23 Jul 2019 14:14:59 -0000	1.55.2.13
@@ -5,8 +5,8 @@
 
   * An xowiki includelet to display the "folders"
   * An xowiki includelet to display the "child-resources"
-  of a page (e.g. the contents of a folder)
-
+    of a page (e.g. the contents of a folder)
+ 
   @author Michael Aram
   @author Gustaf Neumann
 }
@@ -456,7 +456,7 @@
       if {$is_current} {
         $node open_tree
 
-        if {[info commands ::__xowiki__MenuBar] ne ""
+        if {[nsf::is object ::__xowiki__MenuBar]
             && [::__xowiki__MenuBar exists submenu_pages(folder)]} {
           set owner [::__xowiki__MenuBar set submenu_owner(folder)]
           $subnode add_pages -full true \