$ git clone -n https://src.fedoraproject.org/rpms/R-git2r.git /var/lib/mock/f33-build-257873-50920/root/chroot_tmpdir/scmroot/R-git2r
Cloning into '/var/lib/mock/f33-build-257873-50920/root/chroot_tmpdir/scmroot/R-git2r'...
$ git reset --hard 4e168f1647f83b9dfe43ae7eac881349f6f4b65b
HEAD is now at 4e168f1 Properly remove old patches.