Index: openacs-4/packages/xotcl-core/tcl/context-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-core/tcl/context-procs.tcl,v
diff -u -r1.75.2.4 -r1.75.2.5
--- openacs-4/packages/xotcl-core/tcl/context-procs.tcl	4 Jul 2019 18:09:42 -0000	1.75.2.4
+++ openacs-4/packages/xotcl-core/tcl/context-procs.tcl	23 Jul 2019 16:56:01 -0000	1.75.2.5
@@ -227,7 +227,7 @@
                                   {-actual_query " "}
                                   {-keep_cc false}
                                 } {
-    set exists_cc [:isobject ::xo::cc]
+    set exists_cc [nsf::is object ::xo::cc]
 
     # if we have a connection context and we want to keep it, do
     # nothing and return.