$ git clone -n https://src.fedoraproject.org/rpms/rpm-ostree.git /var/lib/mock/f33-build-189977-46211/root/chroot_tmpdir/scmroot/rpm-ostree
Cloning into '/var/lib/mock/f33-build-189977-46211/root/chroot_tmpdir/scmroot/rpm-ostree'...
$ git reset --hard 3879458ae2c6bddf66aef376e71d27476485bae7
HEAD is now at 3879458 Rebuild (json-c)