Merge pull request #2801 from github/cklin/overlay-databases #3896

Job	Run time
Diagnostic export (windows-latest, linked)	2m 44s
Diagnostic export (windows-latest, nightly-latest)	5m 6s
Diagnostic export (macos-latest, nightly-latest)	1m 26s
Diagnostic export (macos-latest, linked)	1m 24s
Diagnostic export (ubuntu-latest, linked)	1m 3s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 0s
	12m 43s

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