Delay collision detection until new sprites separate?

[GreatBigBore]

In my game my sprites can spawn at coordinates that have them overlapping already existing sprites. Is there a way to ignore this overlap until the two sprites separate, and then turn on collision detection? In case it matters, I'm using group-level collision detection at the moment.

[GreatBigBore]

So far I'm putting my new sprites into a group that has no collision detection. In the update function, I check the .touching property of the sprites in this group. When .touching.none === true, I move the sprites into the normal group that has collisions turned on. If anyone has any better ideas, I'd love to hear them.