$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_fold.git /var/lib/mock/f40-build-779976-130577/root/chroot_tmpdir/scmroot/rust-uu_fold
Cloning into '/var/lib/mock/f40-build-779976-130577/root/chroot_tmpdir/scmroot/rust-uu_fold'...
$ git fetch origin fb7bef9f394d2d85b9b8b4bb0f65aa0132386153:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_fold
 * [new ref]         fb7bef9f394d2d85b9b8b4bb0f65aa0132386153 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb7bef9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild