Fix rest cannot update model because primary id is removed from array…

… when computing difference

src/Rest/Base.php

@@ -378,7 +378,7 @@ private static function dataDiff(array $data1, array $data2): array
                         $diff[$key1] = $recursiveDiff;
                     }
                 } else {
-                    if ($value1 != $data2[$key1]) {
+                    if ($value1 != $data2[$key1] || $key1 === static::$PRIMARY_KEY) {
                         $diff[$key1] = $value1;
                     }
                 }