$ git clone -n https://src.fedoraproject.org/rpms/rust-rust-embed.git /var/lib/mock/f40-build-2116348-50709/root/chroot_tmpdir/scmroot/rust-rust-embed
Cloning into '/var/lib/mock/f40-build-2116348-50709/root/chroot_tmpdir/scmroot/rust-rust-embed'...
$ git fetch origin 845e2580bd1d11220d574d86d888bea0c63d6eab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rust-embed
 * [new ref]         845e2580bd1d11220d574d86d888bea0c63d6eab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 845e258 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild