(a) A final settlement agreement reached during, or as a result of mediation, that resolves an entire claim or any designated and severable portion of a claim shall be in writing and signed by the authorized representatives of the parties.(b) If the settlement agreement does not resolve all issues raised by the claim and counterclaim, the agreement shall identify the unresolved issues.(c) A partial settlement does not waive a contractor's rights under the Government Code, Chapter 2260, as to unresolved claims.