$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_split.git /var/lib/mock/f40-build-781138-131426/root/chroot_tmpdir/scmroot/rust-uu_split
Cloning into '/var/lib/mock/f40-build-781138-131426/root/chroot_tmpdir/scmroot/rust-uu_split'...
$ git fetch origin c32a12ec1c9cd72ce76290f1787e89c66057b1f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_split
 * [new ref]         c32a12ec1c9cd72ce76290f1787e89c66057b1f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c32a12e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild