$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-cmd-base.git /var/lib/mock/f40-build-2613526-64071/root/chroot_tmpdir/scmroot/rust-nu-cmd-base
Cloning into '/var/lib/mock/f40-build-2613526-64071/root/chroot_tmpdir/scmroot/rust-nu-cmd-base'...
$ git fetch origin 0967bfc228529c1cec83857baff23ce1dec21334:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-cmd-base
 * [new ref]         0967bfc228529c1cec83857baff23ce1dec21334 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0967bfc Update to 0.91.0 (rhbz#2257500)