$ git clone -n https://src.fedoraproject.org/rpms/libb2.git /var/lib/mock/f33-build-138974-42289/root/chroot_tmpdir/scmroot/libb2
Cloning into '/var/lib/mock/f33-build-138974-42289/root/chroot_tmpdir/scmroot/libb2'...
$ git reset --hard c59db23317344f68cbbe5dcbd2c79a66ee04e059
HEAD is now at c59db23 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild