$ git clone -n https://src.fedoraproject.org/rpms/lucene++.git /var/lib/mock/f31-build-48967-27217/root/chroot_tmpdir/scmroot/lucene++
Cloning into '/var/lib/mock/f31-build-48967-27217/root/chroot_tmpdir/scmroot/lucene++'...
$ git reset --hard 8817c5ef2efa1f830cf74b1290f7ef28edb320a2
HEAD is now at 8817c5e - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild