repair tests for cmg=1 #18

Job	Run time
ci (tpb, ubuntu-22.04, --pb --threads --enable-libffi, test-some-fast)	38m 58s
ci (a6osx, macos-12)	16m 59s
ci (ta6osx, macos-12)	21m 8s
ci (i3le, ubuntu-22.04)	18m 25s
ci (ti3le, ubuntu-22.04)	24m 43s
ci (a6le, ubuntu-22.04)	13m 57s
ci (ta6le, ubuntu-22.04)	18m 54s
ci (ta6le, ubuntu-22.04, reboot, -m=ta6le --force, re.boot SCHEME="chezscheme", test-some-fast)	14m 57s
ci (i3nt, windows-2022, vs)	29m 46s
ci (ti3nt, windows-2022, vs)	40m 32s
ci (a6nt, windows-2022, vs)	33m 6s
ci (ta6nt, windows-2022, vs)	46m 27s
ci (ta6nt, windows-2022, gcc)	23m 27s
	5h 41m 19s

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