$ git clone -n https://src.fedoraproject.org/rpms/plasma-milou.git /var/lib/mock/f40-build-1495555-23854/root/chroot_tmpdir/scmroot/plasma-milou
Cloning into '/var/lib/mock/f40-build-1495555-23854/root/chroot_tmpdir/scmroot/plasma-milou'...
$ git fetch origin a9115045c34c5a00915069c0f255f48b0d92dc83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-milou
 * [new ref]         a9115045c34c5a00915069c0f255f48b0d92dc83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a911504 6.1.2