$ git clone -n https://src.fedoraproject.org/rpms/rclone.git /var/lib/mock/f39-build-1643308-40231/root/chroot_tmpdir/scmroot/rclone
Cloning into '/var/lib/mock/f39-build-1643308-40231/root/chroot_tmpdir/scmroot/rclone'...
$ git fetch origin 8a777c57a1b03b39b15b97d2543b3bb5ea204ad7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rclone
 * [new ref]         8a777c57a1b03b39b15b97d2543b3bb5ea204ad7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a777c5 Update to 1.64.2 - Closes rhbz#2244697