$ git clone -n https://src.fedoraproject.org/rpms/rubygem-racc.git /var/lib/mock/f37-build-680499-76996/root/chroot_tmpdir/scmroot/rubygem-racc
Cloning into '/var/lib/mock/f37-build-680499-76996/root/chroot_tmpdir/scmroot/rubygem-racc'...
$ git reset --hard 54b43583755ebbe1717986d8cf82dd41c104a506
HEAD is now at 54b4358 1.6.2