Fixed test and PDO error

app/controllers/api/account.php

@@ -602,7 +602,7 @@ App::post('/v1/account/sessions/anonymous')
             throw new Exception('Failed to create anonymous user.', 401);
         }
 
-        if ($user->getId()) {
+        if (!$user->isEmpty()) {
             throw new Exception('Cannot create an anonymous user when logged in.', 401);
         }
 
@@ -662,7 +662,8 @@ App::post('/v1/account/sessions/anonymous')
 
         Authorization::setRole('user:'.$user->getId());
 
-        $user = $dbForInternal->updateDocument('users', $user->getId(), $user);
+        $user = $dbForInternal->updateDocument('users', $user->getId(),
+            $user->setAttribute('sessions', $session, Document::SET_TYPE_APPEND));
 
         $audits
             ->setParam('userId', $user->getId())

app/controllers/api/teams.php

@@ -456,7 +456,6 @@ App::get('/v1/teams/:teamId/memberships')
         ]), Response::MODEL_MEMBERSHIP_LIST);
     });
 
-
 App::patch('/v1/teams/:teamId/memberships/:membershipId')
     ->desc('Update Membership Roles')
     ->groups(['api', 'teams'])

src/Appwrite/Extend/PDO.php

@@ -77,6 +77,7 @@ class PDO extends PDONative
             $result = $this->pdo->rollBack();
         } catch (\Throwable $th) {
             $this->pdo = $this->reconnect();
+            return false;
         }
 
         return $result;