$ git clone -n https://src.fedoraproject.org/rpms/xbyak_aarch64.git /var/lib/mock/f40-build-797099-141063/root/chroot_tmpdir/scmroot/xbyak_aarch64
Cloning into '/var/lib/mock/f40-build-797099-141063/root/chroot_tmpdir/scmroot/xbyak_aarch64'...
$ git fetch origin f8ef631ca9c239fff3a6fde0db568223780143ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xbyak_aarch64
 * [new ref]         f8ef631ca9c239fff3a6fde0db568223780143ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8ef631 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild