PTFE-1981 handle cancelled build on same sha #823

Job	Run time
lint	36s
unit (utests)	50s
integration (tests-noqueue, QuickTest)	1m 43s
unit (tests-api-mock)	49s
integration (tests-noqueue, BuildFailedTest)	35s
unit (tests-server)	50s
integration (tests-noqueue, RepositoryTests)	35s
integration (tests-noqueue, TestBertE)	5m 44s
integration (tests-noqueue, TestQueueing)	38s
integration (tests-noqueue, TaskQueueTests)	3m 51s
integration (tests, QuickTest)	1m 43s
integration (tests, BuildFailedTest)	42s
integration (tests, RepositoryTests)	33s
integration (tests, TestBertE)	7m 20s
integration (tests, TestQueueing)	5m 46s
integration (tests, TaskQueueTests)	3m 24s
	35m 39s

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