How to cancel lines Awarded to a Supplier in a Negotiation

Summary: User has awarded all lines in a Negotiation to a Supplier, current Negotiation status is Award in Progress (unsealed), now it is required to cancel the lines awarded to that supplier and assign them to another supplier, how can this be achieved?

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Version (include the version you are using, if applicable): 24D

Code Snippet (add any code snippets that support your topic, if applicable):