forcing language by parameter

src/Core/L10n.php

@@ -109,7 +109,10 @@ class L10n extends BaseObject
 				}
 			}
 		}
-
+		//if $_GET['lang'] is set force $_GET['lang']
+		if (isset($_GET['lang'])) {
+			$lang_list = [ $_GET['lang'] ];
+		}
 		// check if we have translations for the preferred languages and pick the 1st that has
 		foreach ($lang_list as $lang) {
 			if ($lang === 'en' || (file_exists("view/lang/$lang") && is_dir("view/lang/$lang"))) {