Index: openacs-4/packages/xowiki/tcl/xowiki-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-procs.tcl,v
diff -u -N -r1.542.2.3 -r1.542.2.4
--- openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	12 Mar 2019 10:42:02 -0000	1.542.2.3
+++ openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	25 Mar 2019 09:05:06 -0000	1.542.2.4
@@ -2413,7 +2413,7 @@
       return ""
     }
 
-    if {[info exists :__RESOLVE_LOCAL] && [$l is_self_link]} {
+    if {[info exists :__RESOLVE_LOCAL] && [$l exists is_self_link] && [$l is_self_link]} {
       :set_resolve_context -package_id [:physical_package_id] -parent_id [:physical_parent_id]
       $l parent_id [:anchor_parent_id]
       set html [$l render]