A Chinese exporter received one set of irrevocable L/C from abroad with the China branch of a foreign bank as the advising bank and confirming bank. After the shipment, at the time that the exporter was to present the shipment documents to the bank for negotiation, exporter was suddenly notified by the foreign bank that the bank would not accept the negotiation of the documents and make payment since the issuing bank has declared bank corruption,but the foreign bank agreed to make collection against the buyer with the nomination of the exporter.What are the following analysis correct?（ ）。