I haven’t gotten to this point in 1.3 yet, but I’d have to say that starting from zero research is probably going too far (if that is how it works), considering that in every scenario you at least start out with something. Maybe keep some randomly selected low tier research, or let the player choose a few to carry over. Just as long as it’s a reset to the equivalent of a new colony, not a reset to being even farther behind than tribals.