Blender Git Loki

Geometry Nodes: Do not realize instances in the material assign node

Only run the node once for every unique geometry set in the input's
instance heirarchy. This can massively improve performance when
there are many instances, but it will mean that the result is the same
for every instance. For the previous behavior, a "Realize Instances"
node can be used before this one.

This node can be changed without versioning since the old material
assign node was already deprecated and replaced.