$ git clone -n https://src.fedoraproject.org/rpms/rust-futures-io.git /var/lib/mock/f40-build-2712771-72063/root/chroot_tmpdir/scmroot/rust-futures-io
Cloning into '/var/lib/mock/f40-build-2712771-72063/root/chroot_tmpdir/scmroot/rust-futures-io'...
$ git fetch origin 11eb678f12b54f93f15963b6d01845cc1a9966ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-futures-io
 * [new ref]         11eb678f12b54f93f15963b6d01845cc1a9966ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 11eb678 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild