$ git clone -n https://src.fedoraproject.org/rpms/rust-serde_stacker.git /var/lib/mock/f40-build-2653739-66903/root/chroot_tmpdir/scmroot/rust-serde_stacker
Cloning into '/var/lib/mock/f40-build-2653739-66903/root/chroot_tmpdir/scmroot/rust-serde_stacker'...
$ git fetch origin 0dddf17d34e943913ea14e502e1281c8aae5748a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serde_stacker
 * [new ref]         0dddf17d34e943913ea14e502e1281c8aae5748a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0dddf17 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild