$ git clone -n https://src.fedoraproject.org/rpms/rust-futures-util.git /var/lib/mock/f40-build-2081888-49798/root/chroot_tmpdir/scmroot/rust-futures-util
Cloning into '/var/lib/mock/f40-build-2081888-49798/root/chroot_tmpdir/scmroot/rust-futures-util'...
$ git fetch origin a9692f501af0698770b868c3aa7fad793f6e6e24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-futures-util
 * [new ref]         a9692f501af0698770b868c3aa7fad793f6e6e24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9692f5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild