Fix error when saving models in transaction when it needs a full update

src/db/Model.ts

@@ -116,7 +116,7 @@ export default abstract class Model {
                 const result = await this._factory.select()
                     .where('id', this.id!)
                     .limit(1)
-                    .execute();
+                    .execute(connection);
                 this.updateWithData(result.results[0]);
             }