$ git clone -n https://src.fedoraproject.org/rpms/rust-listenfd.git /var/lib/mock/f40-build-2653713-66903/root/chroot_tmpdir/scmroot/rust-listenfd
Cloning into '/var/lib/mock/f40-build-2653713-66903/root/chroot_tmpdir/scmroot/rust-listenfd'...
$ git fetch origin 368cd35f39ef17b74b87edca9e7db218b169f7f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-listenfd
 * [new ref]         368cd35f39ef17b74b87edca9e7db218b169f7f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 368cd35 Update to version 1.0.1