Fix history truncation.

guacamole/src/main/webapp/scripts/root-ui.js

@@ -366,6 +366,14 @@ GuacamoleHistory.onchange = function(id, old_entry, new_entry) {
     
 };
 
+/*
+ * This window has no name. We need it to have no name. If someone navigates
+ * to the root UI within the same window as a previous connection, we need to
+ * remove the name from that window such that new attempts to use that previous
+ * connection do not replace the contents of this very window.
+ */
+window.name = "";
+
 /*
  * Update session state when auto-fit checkbox is changed
  */