Index: openacs-4/packages/xowiki/tcl/tree-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/tree-procs.tcl,v
diff -u -r1.23.2.19 -r1.23.2.20
--- openacs-4/packages/xowiki/tcl/tree-procs.tcl	9 Apr 2022 14:57:04 -0000	1.23.2.19
+++ openacs-4/packages/xowiki/tcl/tree-procs.tcl	22 Feb 2023 12:57:18 -0000	1.23.2.20
@@ -439,7 +439,7 @@
       -superclass TreeRenderer=list \
       -li_expanded_atts [list "class='expanded'" ""]
 
-  TreeRenderer=yuitree proc include_head_entries {{-style ""} {-ajax 1} args} {
+  TreeRenderer=yuitree proc include_head_entries {{-style ""} {-ajax:boolean 1} args} {
     ::xo::Page requireCSS urn:ad:css:yui2:fonts/fonts-min
     ::xo::Page requireCSS urn:ad:css:yui2:treeview/assets/skins/sam/treeview
     if {$style ne ""} {