With this commit, the distribute points on faces node runs only once for every unique mesh in its input. That means if there are 100 instances of the same mesh, it will only run once. This basically reverts rB84a4f2ae68d408301. The optimization there didn't end up being worth it in the end, since it complicates code quite a lot. It's also incompatible with this method of dealing with instances, and it breaks field evaluation for instances, where we would have to make sure to handle each instance transform properly otherwise, evaluating the field separately for every instance. Differential Revision: https://developer.blender.org/D12630