Index: openacs-4/packages/ref-language/tcl/apm-callback-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/ref-language/tcl/apm-callback-procs.tcl,v
diff -u -r1.2 -r1.3
--- openacs-4/packages/ref-language/tcl/apm-callback-procs.tcl	14 May 2010 12:22:49 -0000	1.2
+++ openacs-4/packages/ref-language/tcl/apm-callback-procs.tcl	17 Oct 2010 21:06:09 -0000	1.3
@@ -26,6 +26,9 @@
         -spec {  
             5.6.0d1 5.6.0d2 {
 
+                # If the constraint doesn't exist, we don't care ...
+                catch [db_dml drop_constraint {}]
+
                 set new_languages [ref_language::apm::lang_list_for_5_6_0d2]
 
                 foreach {code name} $new_languages {