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Currently geometry composites post/pre (current/init) members. Such as in PointSet it has current and init positions. This has proven difficult. Instead an entirely separate geometry object should be used. This is especially helpful for post/pre velocities and other attributes. As well as every other member that has post/pre state, including those in primitive geometries.

Obvious failures of such thing are shown in PbdClothRemap. If one subdivides then resets, it will fail. Similarly for any attribute reset will fail.