$ git clone -n https://src.fedoraproject.org/rpms/rclone.git /var/lib/mock/f41-build-side-1-2824907-33350/root/chroot_tmpdir/scmroot/rclone
Cloning into '/var/lib/mock/f41-build-side-1-2824907-33350/root/chroot_tmpdir/scmroot/rclone'...
$ git fetch origin 120873a89d0e80fc936b4bc8fe196e1d55c30e1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rclone
 * [new ref]         120873a89d0e80fc936b4bc8fe196e1d55c30e1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 120873a Fix version ldflag - Closes rhbz#2315855