$ git clone -n https://src.fedoraproject.org/rpms/libnbd.git /var/lib/mock/f31-build-111974-34238/root/chroot_tmpdir/scmroot/libnbd
Cloning into '/var/lib/mock/f31-build-111974-34238/root/chroot_tmpdir/scmroot/libnbd'...
$ git reset --hard 8651382d3edb35effa51bde7e72e2a1ced3b9b41
HEAD is now at 8651382 Fix interop tests on slow machines.