Hans Goudey
baae87ce86
For a single day in 2015 between rBff3d535bc2a6309 and rB945f32e66d6ada, custom data structs could be written with an incorrect maxlayer field. This means that custom data structs read from those files would think they have more space to add new layers than they actually did, causing a crash if more layers were added. This was found while investigating a crash from D14365 which adds new face corner layers in versioning. The fix is to reset all maxlayer integers to totlayer, which is done when writing files in current Blender anyway. The file tests/render/motion_blur/camera_zoom_blur_perspective.blend has this problem as it was added on 2015-07-21, right between the two commits. Adding three custom data layers in versioning code would crash. The problem was originally found and investigated by Martijn Versteegh (@Baardaap), thanks! Differential Revision: https://developer.blender.org/D14786
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