CHUI-145 : WIP Always open the message pane when clicking on a conversation in the list

indra/llui/llmultifloater.cpp

@@ -173,7 +173,7 @@ void LLMultiFloater::addFloater(LLFloater* floaterp, BOOL select_added_floater,
 	else if (floaterp->getHost())
 	{
 		// floaterp is hosted by somebody else and
-		// this is adding it, so remove it from it's old host
+		// this is adding it, so remove it from its old host
 		floaterp->getHost()->removeFloater(floaterp);
 	}
 	else if (floaterp->getParent() == gFloaterView)

indra/newview/llimfloatercontainer.cpp

@@ -431,6 +431,8 @@ LLConversationItem::LLConversationItem(std::string name, const LLUUID& uuid, LLF
 // Virtual action callbacks
 void LLConversationItem::selectItem(void)
 {
+    // Always expand the message pane in that case
+    mContainer->collapseMessagesPane(false);
     // Switch to the conversation floater that is being selected
     mContainer->selectFloater(mFloater);
 }