Research Points gained via Rewards

I just received +500 from a special mission … but i wasn’t actively researching any Techs.
Does this (rare or any other) amount gets “tracked or kept temporarily idle” until i start new research from my pending projects list?

They are lost.

They are also lost if your research is near the completion. Well it gets completed but spare research points are not added to next research project.

Maybe they will change it later.