fix(core-flows): copy line items attribute (#8471) #1

Job	Run time
setup	9m 19s
Shard (0) Unit Tests	10m 0s
integration-tests-packages	12m 15s
Shard (1) Unit Tests	8m 11s
Shard (0) Module Integration Tests	11m 21s
Shard (0) HTTP Integration Tests	10m 41s
Shard (1) Module Integration Tests	10m 21s
Shard (1) HTTP Integration Tests	9m 1s
unit-tests	1s
integration-tests-http	1s
integration-tests-modules	1s
	1h 21m 12s

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