It was stated that the narrower definition resulting from deleting the phrase in square brackets would allow performing parties who undertake to perform and then who either do not perform or delegate that performance to another party to escape liability.
据称，通过删除这句短语前后的方括号而缩小该定义的范围，会使得已承诺履约但随后未履约或将履约责任转托另一当事方的履约方逃避责任。