implement auth with existing identity

src/Entity/Browser/Container/Page/Auth.php

@@ -180,10 +180,19 @@ class Auth
             {
                 if ($option->gtk->get_active())
                 {
-                    // Auth
+                    // Logout previous identities for this request
+                    $this->page->container->browser->database->auth->logout(
+                        $this->page->navbar->request->getValue()
+                    );
+
+                    // Activate existing identity
                     if ($id)
                     {
-                        // @TODO activate existing record
+                        // Add new auth record
+                        $this->page->container->browser->database->auth->add(
+                            $id,
+                            $this->page->navbar->request->getValue()
+                        );
                     }
 
                     // Generate new identity
@@ -202,11 +211,6 @@ class Auth
                                 // Init identity model
                                 $identity = new Gemini;
 
-                                // Logout previous set
-                                $this->page->container->browser->database->auth->logout(
-                                    $this->page->navbar->request->getValue()
-                                );
-
                                 // Add new auth record
                                 $this->page->container->browser->database->auth->add(
                                     $this->page->container->browser->database->identity->add(