Merge pull request #4202 from rabuzarus/20180110_-_init_app_in_sessionAuth

Bugfix: getApp() in sessionAuth()

src/Module/Login.php

@@ -181,7 +181,7 @@ class Login extends BaseModule
 					intval($_SESSION['visitor_id'])
 				);
 				if (DBM::is_result($r)) {
-					$a->contact = $r[0];
+					self::getApp()->contact = $r[0];
 				}
 			}