$ git clone -n https://src.fedoraproject.org/rpms/rust-nalgebra.git /var/lib/mock/f40-build-2258773-54356/root/chroot_tmpdir/scmroot/rust-nalgebra
Cloning into '/var/lib/mock/f40-build-2258773-54356/root/chroot_tmpdir/scmroot/rust-nalgebra'...
$ git fetch origin e59bf5b1c869c65f2737efe0f79fc54d89b8c702:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nalgebra
 * [new ref]         e59bf5b1c869c65f2737efe0f79fc54d89b8c702 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e59bf5b Fix inaccurate license tag and crate metadata