Add flag to toggle reshuffle #62

Job	Run time
build-deb_stable	1h 12m 22s
build-20_04	1h 12m 3s
build-deb_stable-w-clang-llvm-org (0)	1h 5m 50s
build-deb_oldoldstable	1h 11m 19s
build-deb_stable-w-clang-llvm-org (15)	1h 6m 32s
build-deb_stable-w-clang-llvm-org_nightly	0s
build-deb_unstable	1h 14m 47s
build-deb_stable-w-clang-llvm-org (17)	1h 4m 6s
build-windows	34m 27s
build-windows-artifacts	0s
	8h 41m 26s

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