Index: openacs-4/packages/dotlrn-ecommerce/lib/tree-chunk.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn-ecommerce/lib/tree-chunk.tcl,v
diff -u -r1.4 -r1.5
--- openacs-4/packages/dotlrn-ecommerce/lib/tree-chunk.tcl	19 Jun 2005 06:05:06 -0000	1.4
+++ openacs-4/packages/dotlrn-ecommerce/lib/tree-chunk.tcl	22 Jun 2005 07:33:05 -0000	1.5
@@ -183,9 +183,11 @@
 
 set instructor_community_id [parameter::get -package_id [ad_conn package_id] -parameter InstructorCommunityId -default 0 ]
 set _instructors [dotlrn_community::list_users $instructor_community_id]
+
 set __instructors [list]
 if { [llength $_instructors] == 0 } {
     set _instructors 0
+    set instructors_filter ""
 } else {
     foreach _instructor $_instructors {
 	lappend __instructors [ns_set get $_instructor user_id]