土耳其远期LC此条款用意何在？

+IT IS A CONDITION OF THIS L/C THAT IF OUR BANK DECIDE TO INCUR  DEFERRED PAYMENT UNDERTAKING UPON RECEIVING APPLICANT S   
INSTRUCTION BEFORE THE PRESENTATION OF DOCUMENTS TO  THE ADVISING/NOMINATED/CONFIRMING BANK AND/OR ISSUING BANK,   
THE DEFERED PAYMENT UNDERTAKING AMOUNT WILL BE AUTOMATICALLY  REDUCED FROM THE AVAILABLE AMOUNT UNDER THIS L/C WITHOUT NEED   
FOR ANY AMENDMENT OR FURTHER COMMUNICATION. IN CASE ADVISING/NOMINATED/CONFIRMING BANK RECEIVE THE RELEVANT  DOCUMENTS IN FUTURE THEY WILL SIMPLY SEND DOCUMENTS  TO THE ISSUING BANK.

背景:我司收到的是国外到期，凭开证行延期付款的远期LC, 上述条款首次遇到，不明白开证行用意何在？对受益人有何风险？

这条款为什么要**？挺好的啊，交单前开证行就可以发出延期付款 承诺，难道不好么？

我估计是为了解决疫情问题，提单寄收，银行之间寄单都 不正常的应急用途。

交单前发一个延期付款 承诺，申请人同意电放...