$ git clone -n https://src.fedoraproject.org/rpms/libcdr.git /var/lib/mock/f31-build-58304-28434/root/chroot_tmpdir/scmroot/libcdr
Cloning into '/var/lib/mock/f31-build-58304-28434/root/chroot_tmpdir/scmroot/libcdr'...
$ git reset --hard dd7c54326f577f7c1851f1d07483fe350ed72fa6
HEAD is now at dd7c543 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild