ruler: correctly pass query partial response #17785

Job	Run time
Thanos unit tests	16m 23s
Go build with -tags=stringlabels	2m 30s
Build e2e Docker image	3m 55s
Go build for different platforms	14m 14s
Check misspelled words	14s
Linters (Static Analysis) for Go	5m 9s
Thanos end-to-end tests (8, 3)	3m 58s
Thanos end-to-end tests (8, 5)	4m 46s
Thanos end-to-end tests (8, 0)	4m 52s
Thanos end-to-end tests (8, 2)	4m 2s
Thanos end-to-end tests (8, 1)	4m 1s
Thanos end-to-end tests (8, 7)	4m 27s
Thanos end-to-end tests (8, 6)	4m 35s
Thanos end-to-end tests (8, 4)	6m 32s
	1h 19m 38s

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