Index: branches/RC/core/units/languages/languages_event_handler.php
===================================================================
diff -u -r11711 -r11850
--- branches/RC/core/units/languages/languages_event_handler.php	(.../languages_event_handler.php)	(revision 11711)
+++ branches/RC/core/units/languages/languages_event_handler.php	(.../languages_event_handler.php)	(revision 11850)
@@ -227,6 +227,11 @@
 		{
 			$this->Application->SetVar('m_lang', $this->Application->GetVar('language'));
 
+			if ($this->Application->IsAdmin()) {
+				// without this language change in admin will cause erase of last remembered tree section
+				$this->Application->SetVar('skip_last_template', 1);
+			}
+
 			//$this->Application->LinkVar('language', 'm_lang');
 		}