$ git clone -n https://src.fedoraproject.org/rpms/plasma-nano.git /var/lib/mock/f40-build-2196046-51547/root/chroot_tmpdir/scmroot/plasma-nano
Cloning into '/var/lib/mock/f40-build-2196046-51547/root/chroot_tmpdir/scmroot/plasma-nano'...
$ git fetch origin 3a7bef3fa46cafbb39ac59f8b439ea849f77e250:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-nano
 * [new ref]         3a7bef3fa46cafbb39ac59f8b439ea849f77e250 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a7bef3 5.91.0