$ git clone -n https://src.fedoraproject.org/rpms/plasma-nm.git /var/lib/mock/f40-build-789752-135974/root/chroot_tmpdir/scmroot/plasma-nm
Cloning into '/var/lib/mock/f40-build-789752-135974/root/chroot_tmpdir/scmroot/plasma-nm'...
$ git fetch origin 705d5b7ee226718c32dee640bef45fb692f630c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-nm
 * [new ref]         705d5b7ee226718c32dee640bef45fb692f630c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 705d5b7 6.0.2