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test/source
Campbell Barton 02a204fe67 Fix T68024: Crash from missing original-index mesh layer
Constructive modifiers were not initializing an original index layer
in the case a previous deform modifier created 'mesh_final'.

This happened in the case of multiple deform modifiers that deform along
normals, as requesting normals caused the final mesh to be created.

Ensure mapping data is created in the case
only non-constructive modifiers have run.
2020-09-23 15:26:29 +10:00
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