Merge pull request #757 from mparkhill/651-assets-broken-redirection

FIX #651 Broken redirection after creating new folder in assets

code/controllers/AssetAdmin.php

@@ -491,6 +491,7 @@ JS
 				return $folder;
 			}
 		}
+		$this->setCurrentPageID(null);
 		return new Folder();
 	}