$ git clone -n https://src.fedoraproject.org/rpms/rust-serde_yaml.git /var/lib/mock/f40-build-2327427-58853/root/chroot_tmpdir/scmroot/rust-serde_yaml
Cloning into '/var/lib/mock/f40-build-2327427-58853/root/chroot_tmpdir/scmroot/rust-serde_yaml'...
$ git fetch origin ae8f3b3ec538fc466094f28cd8724cbfd6612f16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serde_yaml
 * [new ref]         ae8f3b3ec538fc466094f28cd8724cbfd6612f16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae8f3b3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild