$ git clone -n https://src.fedoraproject.org/rpms/rdiff-backup.git /var/lib/mock/f31-build-49549-27309/root/chroot_tmpdir/scmroot/rdiff-backup
Cloning into '/var/lib/mock/f31-build-49549-27309/root/chroot_tmpdir/scmroot/rdiff-backup'...
$ git reset --hard ef702e7002e4bb995b6beb5246238615c9e052f9
HEAD is now at ef702e7 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild