$ git clone -n https://src.fedoraproject.org/rpms/R-backports.git /var/lib/mock/f33-build-374573-61587/root/chroot_tmpdir/scmroot/R-backports
Cloning into '/var/lib/mock/f33-build-374573-61587/root/chroot_tmpdir/scmroot/R-backports'...
$ git reset --hard 144c7454d7493cdb4c11647f3d063f2a8a0b6be1
HEAD is now at 144c745 Update to latest version.