--- ..\lib\BWidget-1.7.0\dropsite.tcl   2004-01-23 10:31:48.000000000 -0800
+++ C:\Program Files\Lib\BWidget-1.7.0\dropsite.tcl    2005-06-01 15:53:24.708250000 -0700
@@ -150,6 +150,7 @@
         set drop(overcmd) $overcmd
         foreach {type ops} $types {
             set drop($type,ops) {}
+            set masklist {}
             foreach {descop lmod} $ops {
                 if { ![llength $descop] || [llength $descop] > 3 } {
                     return -code error "invalid operation description \"$descop\""
