diff -r 189d7752d005 -r efc89569f441 chat/chat-tool/tool/src/java/org/sakaiproject/chat2/tool/ChatTool.java
--- a/chat/chat-tool/tool/src/java/org/sakaiproject/chat2/tool/ChatTool.java	Thu Jun 19 10:15:36 2014 +0800
+++ b/chat/chat-tool/tool/src/java/org/sakaiproject/chat2/tool/ChatTool.java	Thu Jun 19 13:39:40 2014 +0800
@@ -1016,15 +1016,6 @@
    public void setCurrentChannel(DecoratedChatChannel channel)
    {
 
-      // if changing to the same channel, nothing to do
-      // this is a fairly expensive operation, so it's worth optimizing out
-
-      if (this.currentChannel != null && channel != null &&
-	   this.currentChannel.getChatChannel().getId().equals(
-	       channel.getChatChannel().getId())) {
-    	  return;
-      }
-
       // turn off observation for the old channel
       String channelId = null;
       if (channel != null) {