$ git clone -n https://src.fedoraproject.org/rpms/rust-serde-xml-rs.git /var/lib/mock/f40-build-2657988-66917/root/chroot_tmpdir/scmroot/rust-serde-xml-rs
Cloning into '/var/lib/mock/f40-build-2657988-66917/root/chroot_tmpdir/scmroot/rust-serde-xml-rs'...
$ git fetch origin 7a1acef3327dcafae74053c7c1527799d8b07345:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serde-xml-rs
 * [new ref]         7a1acef3327dcafae74053c7c1527799d8b07345 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a1acef Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild