Mine

Index: /web/vs/trunk/tcl/vs/vs-metadata.tcl
===================================================================
--- /web/vs/trunk/tcl/vs/vs-metadata.tcl        (revision 23211)
+++ /web/vs/trunk/tcl/vs/vs-metadata.tcl        (working copy)
@@ -355,7 +355,7 @@
                 lappend cols "
                        case when
                          vs_metadata_template.get_option_value_comments($option_id_sql, $key_column_name, $opts_table_sql, $opts_column_sql) is null then
-                         $clean_option_text
+                         ''
                        else
                          $clean_option_text || ' - ' || vs_metadata_template.get_option_value_comments($option_id_sql, $key_column_name, $opts_table_sql, $opts_column_sql) || '; '
                        end