Index: openacs-4/packages/xowiki/tcl/form-field-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/form-field-procs.tcl,v
diff -u -r1.284.2.156 -r1.284.2.157
--- openacs-4/packages/xowiki/tcl/form-field-procs.tcl	5 Apr 2021 12:23:25 -0000	1.284.2.156
+++ openacs-4/packages/xowiki/tcl/form-field-procs.tcl	18 May 2021 20:23:46 -0000	1.284.2.157
@@ -2116,7 +2116,7 @@
                             "return_url:localurl" \
                             [::$parent_id pretty_link]]
         ::$package_id returnredirect [${:object} pretty_link \
-                                          -query [export_vars {m delete} return_url]]
+                                          -query [export_vars {{m delete} return_url}]]
       }
     }
   }