$ git clone -n https://src.fedoraproject.org/rpms/rust-libslirp.git /var/lib/mock/f41-build-2622784-25569/root/chroot_tmpdir/scmroot/rust-libslirp
Cloning into '/var/lib/mock/f41-build-2622784-25569/root/chroot_tmpdir/scmroot/rust-libslirp'...
$ git fetch origin 5549465178bc9eee2082c6a6daec0af179390884:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libslirp
 * [new ref]         5549465178bc9eee2082c6a6daec0af179390884 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5549465 Update to 4.3.2