Index: muc.tcl
===================================================================
--- muc.tcl	(revision 159)
+++ muc.tcl	(working copy)
@@ -453,7 +453,7 @@
                 set state(users) [lreplace $state(users) $idx $idx]
             }
 
-            catch {unset state(jid,$nick)}
+            #catch {unset state(jid,$nick)}
             catch {unset state(affiliation,$nick)}
             catch {unset state(role,$nick)}