keep some global flags #784

Job	Run time
lint	38s
unit (utests)	1m 4s
unit (tests-api-mock)	57s
integration (tests-noqueue, BuildFailedTest)	39s
unit (tests-server)	1m 6s
integration (tests-noqueue, RepositoryTests)	35s
integration (tests-noqueue, TestBertE)	3m 46s
integration (tests-noqueue, TestQueueing)	37s
integration (tests-noqueue, TaskQueueTests)	2m 15s
integration (tests, BuildFailedTest)	32s
integration (tests, RepositoryTests)	36s
integration (tests, TestBertE)	4m 33s
integration (tests, TestQueueing)	3m 34s
integration (tests, TaskQueueTests)	2m 29s
	23m 21s

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