Smoke

Mention both upstream ExternalData merge requests #47

Job	Run time
flatten / windows-latest / hardlink	31s
ubuntu-latest / copy	29s
windows-latest / hardlink	46s
windows-latest / copy	1m 8s
windows-latest / symlink	1m 46s
flatten / ubuntu-latest / hardlink	12s
ubuntu-latest / symlink	29s
ubuntu-latest / hardlink	25s
	5m 46s

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