Index: library/nx/nx.tcl
===================================================================
diff -u -r3cbf24ff95e38976cdc905ec0e8014d9d754ad6f -r0a38046eb4aac6c36ac7c72dc8b0fe6da43f7c6e
--- library/nx/nx.tcl	(.../nx.tcl)	(revision 3cbf24ff95e38976cdc905ec0e8014d9d754ad6f)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision 0a38046eb4aac6c36ac7c72dc8b0fe6da43f7c6e)
@@ -2043,9 +2043,8 @@
   ::nsf::method::alias ::nx::VariableSlot value=get    ::nsf::var::get
   ::nsf::method::alias ::nx::VariableSlot value=set    ::nsf::var::set
   
-  ::nx::VariableSlot public method value=unset {obj prop} {
-    puts stderr "::nsf::var::unset $obj $prop"
-    ::nsf::var::unset $obj $prop
+  ::nx::VariableSlot public method value=unset {obj prop -nocomplain:switch} {
+    ::nsf::var::unset -nocomplain=$nocomplain $obj $prop
   }
 
   ::nx::VariableSlot public method value=add {obj prop value {pos 0}} {