Using cold target recoil ion momentum spectroscopy, we measured the electron velocity distribution with respect to the nuclear scattering plane for the transfer ionization reaction $8.5keV/u{He}^{2+}+Ne\to {He}^{+}+{Ne}^{2+}+e^{-}$ and were able to separate events corresponding to the ${Ne}^{2+}(1s^{2}2s^{2}2p^4)$ final states ${}^3{P}_{2,1,0}$, ${}^1{D}_2$ and ${}^1{S}_0$ via energy conservation analysis. Our comparison of the present data across the three final states, as well as with previous measurements using a helium target, shows that the angular momentum of the removed electrons has only a minor influence on the momentum distribution. In addition to direct ionization, two-step processes also occur, in which highly excited states of ${Ne}^{+}$ are first populated and subsequently autoionize. These processes lead to the emission of electrons with energies as low as a few hundred meV. For the ${}^1{D}_2$ final state, we observed a distinct emission line located at an electron energy of $0.31eV$ and tentatively assigned it to ${Ne}^{+}1s^{2}2s^{2}2p^4{(}^1{S}_0)4f$. This line is barely visible in photoionization experiments and has not been assigned so far.