$ git clone -n https://src.fedoraproject.org/rpms/R-blob.git /var/lib/mock/f37-build-side-32-misc-devel-337459-15460/root/chroot_tmpdir/scmroot/R-blob
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-337459-15460/root/chroot_tmpdir/scmroot/R-blob'...
$ git reset --hard dd2457f9df6916e47d00a8b72a036defa7ec35d9
HEAD is now at dd2457f fix BuildRequires