correctly used ids for routing plan caching #3633

Job	Run time
Integration Tests (Java 11) (mongodb)	1h 36m 50s
Integration Tests (Java 11) (hsqldb)	1h 36m 54s
Integration Tests (Java 11) (monetdb)	39m 36s
Integration Tests (Java 11) (postgresql)	1h 36m 34s
Integration Tests (Java 11) (file)	39m 0s
Integration Tests (Java 11) (cottontail)	42m 37s
Integration Tests (Java 11) (cassandra)	8m 35s
Integration Tests (Java 11) (neo4j)	1h 36m 38s
	8h 36m 44s

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