Subtape + Fix Recursion #589

Job	Run time
test (1.7, ubuntu-latest, x64)	49s
test (1.7, ubuntu-latest, x86)	57s
test (1.7, windows-latest, x64)	1m 6s
test (1.7, windows-latest, x86)	1m 26s
test (1.7, macOS-latest, x64)	1m 19s
test (1, ubuntu-latest, x64)	52s
test (1, ubuntu-latest, x86)	1m 1s
test (1, windows-latest, x64)	1m 18s
test (1, windows-latest, x86)	1m 46s
test (1, macOS-latest, x64)	1m 34s
test (nightly, ubuntu-latest, x64)	1m 20s
test (nightly, ubuntu-latest, x86)	1m 45s
test (nightly, windows-latest, x64)	1m 47s
test (nightly, windows-latest, x86)	2m 47s
test (nightly, macOS-latest, x64)	2m 37s
	22m 24s

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