$ git clone -n https://src.fedoraproject.org/rpms/plasma-milou.git /var/lib/mock/f38-build-728193-101083/root/chroot_tmpdir/scmroot/plasma-milou
Cloning into '/var/lib/mock/f38-build-728193-101083/root/chroot_tmpdir/scmroot/plasma-milou'...
$ git fetch origin d928220d2fb044395b03e296b102564ff06760d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-milou
 * [new ref]         d928220d2fb044395b03e296b102564ff06760d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d928220 5.27.6