Index: ssts-web/src/main/webapp/ext/js/multiSelectCombo.js
===================================================================
diff -u -r36743 -r41011
--- ssts-web/src/main/webapp/ext/js/multiSelectCombo.js	(.../multiSelectCombo.js)	(revision 36743)
+++ ssts-web/src/main/webapp/ext/js/multiSelectCombo.js	(.../multiSelectCombo.js)	(revision 41011)
@@ -183,7 +183,7 @@
                     this.store.clearFilter();
                     this.store.each(function (r) {
                         var checked = !(!v.match('(^|' + this.separator + ')'
-                            + RegExp.escape(r.get(this.valueField))
+                            + RegExp.escape(''+r.get(this.valueField)+'')
                             + '(' + this.separator + '|$)'));
                         r.set(this.checkField, checked);
                     }, this);