$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-readme.git /var/lib/mock/f40-build-780095-130674/root/chroot_tmpdir/scmroot/rust-cargo-readme
Cloning into '/var/lib/mock/f40-build-780095-130674/root/chroot_tmpdir/scmroot/rust-cargo-readme'...
$ git fetch origin edd7180b89bc23add3a757eca08f917366d0be04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-readme
 * [new ref]         edd7180b89bc23add3a757eca08f917366d0be04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at edd7180 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild