do we need to use the overlap in particledata unpackStream? #1026
Description
Currently unpackStream in ParticleData loops on overlap boxes and adds incoming particles to particle array if the box overlaps the ghostbox.
Given that the particles are packed using the overlap in the first place, and their iCell is offseted given the overlap transformation into the destination AMR space, it could be this check/intersection is redundant as possibly always true.
This issue is about determining whether this is the case and if so whether this check could be removed.