Sybren A. Stüvel
8e3676d533
Previously, a GHash was used to store a flattened mapping of parent information based on the Alembic hierarchy, and then that hash was used to set parent pointers on Blender objects. This resulted in errors and some duplicate objects. The new approach stores parent pointers while traversing the Alembic hierarchy, which means that there is much more information about the actual context of the Alembic object itself, producing a more stable import.