$ git clone -n https://src.fedoraproject.org/rpms/rust-rust-embed-utils.git /var/lib/mock/f40-build-2653628-66902/root/chroot_tmpdir/scmroot/rust-rust-embed-utils
Cloning into '/var/lib/mock/f40-build-2653628-66902/root/chroot_tmpdir/scmroot/rust-rust-embed-utils'...
$ git fetch origin dd5dad100a9001727171f0efa4db87195a6a0105:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rust-embed-utils
 * [new ref]         dd5dad100a9001727171f0efa4db87195a6a0105 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd5dad1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild