$ git clone -n https://src.fedoraproject.org/rpms/rust-rtnetlink.git /var/lib/mock/f40-build-2093440-50320/root/chroot_tmpdir/scmroot/rust-rtnetlink
Cloning into '/var/lib/mock/f40-build-2093440-50320/root/chroot_tmpdir/scmroot/rust-rtnetlink'...
$ git fetch origin 58e5a59ec9227557b1b0fd8d6247eedb20e3141f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rtnetlink
 * [new ref]         58e5a59ec9227557b1b0fd8d6247eedb20e3141f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58e5a59 Upgrade to 0.14.0