$ git clone -n https://src.fedoraproject.org/rpms/rust-selinux.git /var/lib/mock/f40-build-1967892-25215/root/chroot_tmpdir/scmroot/rust-selinux
Cloning into '/var/lib/mock/f40-build-1967892-25215/root/chroot_tmpdir/scmroot/rust-selinux'...
$ git fetch origin 45043503d821c87891629bbd87f3385d015a73f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-selinux
 * [new ref]         45043503d821c87891629bbd87f3385d015a73f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4504350 Update to 0.4.4 (rhbz#2271952)