$ git clone -n https://src.fedoraproject.org/rpms/libb64.git /var/lib/mock/f33-build-290479-54504/root/chroot_tmpdir/scmroot/libb64
Cloning into '/var/lib/mock/f33-build-290479-54504/root/chroot_tmpdir/scmroot/libb64'...
$ git reset --hard f9836b5c8fb017da367b99ad965d70d827fb317b
HEAD is now at f9836b5 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild