t/verify: mangle multiple block sizes #804

Job	Run time
build-containers (debian, debian, bookworm, x86_64)	24m 0s
build (linux-gcc)	25m 10s
build-containers (fedora, fedora, 40, x86_64)	25m 36s
build (linux-clang)	23m 24s
build-containers (alma, almalinux, 9, x86_64)	25m 22s
build (macos)	21m 17s
build-containers (oracle, oraclelinux, 9, x86_64)	25m 44s
build-containers (rocky, rockylinux, 9, x86_64)	25m 38s
build-containers (ubuntu, ubuntu, noble, i686)	24m 13s
build (linux-i686-gcc)	24m 35s
build (android)	36s
build-containers (ubuntu, ubuntu, noble, x86_64)	24m 38s
build (windows-cygwin-64)	27m 28s
build (windows-cygwin-32)	29m 5s
build (windows-msys2-64)	26m 56s
build (android-recovery, ubuntu-22.04, aarch64-linux-android32)	32s
	5h 54m 14s

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