If you select no tech to research, at some point you always risk the game mechanics taking over and automatically allocating you a tech. That's sort of expected, I thought. But I would have thought most people in similar situations would put their slider down to 0% to minimize the potential loss.
Either way, it's not a "misclick". You deliberately tried to delay a decision on what to research, it wasn't accidental. Personally, I don't think that qualifies for a reload (and I wouldn't expect one if I were in a similar situation - which I have been a few times).
But like I said, the final call is up to Luc.
(By the way, I think a couple of turns of Anarchy caused by an accidental religion switch are far more reason for a reload than some beakers put into the wrong tech... but I digress.)