util: fix nested proxy inspection #1719

Job	Run time
Build slim tarball	1m 34s
x86_64-linux: with shared libraries	29m 35s
x86_64-darwin: with shared libraries	42m 28s
aarch64-linux: with shared libraries	25m 5s
aarch64-darwin: with shared libraries	24m 59s
	2h 3m 41s

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