fix: enforce contract negotiation request and transfer request consis… #509

Job	Run time
Component-Tests	3m 16s
Checkstyle	4m 22s
End-To-End-Tests	12m 30s
API-Tests	9m 37s
Javadoc	6m 29s
Postgresql-Integration-Tests	7m 47s
Unit-Tests	15m 4s
Upload-Test-Report	11s
Upload-Coverage-Report-To-Codecov	7s
	59m 23s

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