$ git clone -n https://src.fedoraproject.org/rpms/rust-random-trait.git /var/lib/mock/f40-build-2643069-66480/root/chroot_tmpdir/scmroot/rust-random-trait
Cloning into '/var/lib/mock/f40-build-2643069-66480/root/chroot_tmpdir/scmroot/rust-random-trait'...
$ git fetch origin d3178e014a830525b849d0ff6784c1714d8a4f6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-random-trait
 * [new ref]         d3178e014a830525b849d0ff6784c1714d8a4f6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3178e0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild