updated_at not touched when generating a query via property obtained from Query in transaction when using gorm.io/gen

[mika-f]

Explain your user case and expected results

Using gorm.io/gen@v0.3.26, gorm.io/gorm@v1.25.12, updated_at not touched in generated query when build via property obtained from Query in transaction:

// expected behavior
query.WriteDB().Transaction(func(tx *q.Query) error {
	user := tx.User
        // UPDATE `users` SET `name`=?,`updated_at`=? WHERE `users`.`name` = ? AND `users`.`deleted_at` IS NULL
	user.WithContext(ctx).Where(user.Name.Eq(name)).UpdateSimple(user.Name.Value("test2"))
	return nil
})

// actual behavior
query.WriteDB().Transaction(func(tx *q.Query) error {
	user := tx.User
	// UPDATE `users` SET `name`=? WHERE `users`.`name` = ? AND `users`.`deleted_at` IS NULL
	user.WithContext(ctx).Where(user.Name.Eq(name)).UpdateSimple(user.Name.Value("test2"))
	return nil
})