test: wait for ok before initial break after restart #5611

Job	Run time
Build slim tarball	1m 46s
aarch64-linux: with shared libraries	18m 13s
aarch64-darwin: with shared libraries	19m 45s
x86_64-linux: with shared libraries	21m 27s
x86_64-darwin: with shared libraries	44m 50s
	1h 46m 1s

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