$ git clone -n https://src.fedoraproject.org/rpms/rust-bytecheck_derive.git /var/lib/mock/f39-build-1488602-34499/root/chroot_tmpdir/scmroot/rust-bytecheck_derive
Cloning into '/var/lib/mock/f39-build-1488602-34499/root/chroot_tmpdir/scmroot/rust-bytecheck_derive'...
$ git fetch origin 321b61846095cb49f25dc017239170e38ced148b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bytecheck_derive
 * [new ref]         321b61846095cb49f25dc017239170e38ced148b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 321b618 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild