git testsuite failures

There are test cases failing in the testsuite over the past few days, is this expected?

*** t6001-rev-list-merge-order.sh ***
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* FAIL 3: simple merge order check_output simple-merge-order git-rev-list --merge-order --show-breaks HEAD
* FAIL 4: two diamonds merge order (g6) check_output two-diamonds-merge-order-g6 git-rev-list --merge-order --show-breaks g4
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* FAIL 8: cross-epoch, head at l5, prune at l1 check_output cross-epoch-head-at-l5-prune-at-l1 git-rev-list --merge-order l5 ^l1
* FAIL 9: duplicated head arguments check_output duplicated-head-arguments git-rev-list --merge-order l5 l5 ^l1
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* FAIL 20: max-count 10 - merge order check_output max-count-10-merge-order git-rev-list --merge-order --show-breaks --max-count=10 l5
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* FAIL 23: --max-age=c3, --merge-order check_output max-age-c3-merge-order git-rev-list --merge-order --max-age=51148811 l5
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