$ git clone -n https://github.com/xcp-ng-rpms/intel-microcode.git /var/lib/mock/v8.3-incoming-9871-28589/root/chroot_tmpdir/scmroot/intel-microcode
Cloning into '/var/lib/mock/v8.3-incoming-9871-28589/root/chroot_tmpdir/scmroot/intel-microcode'...
$ git fetch origin f70e087bc5fe879c447093e9f130b15931f24e92:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/intel-microcode
 * [new ref]         f70e087bc5fe879c447093e9f130b15931f24e92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f70e087 Update intel-microcode to the drop 2025.4