This pairs with the recently added Export test and reuses the same
.blend file. While there happens to be an instancing related rendering
test, that happens to cover Import, it's better to have a direct test
for it.
Future improvements to both Export and Import to account for the recent
"hidden layer" visibility bug would be good to do as a follow-up.
Pull Request: https://projects.blender.org/blender/blender/pulls/133782
Jesse Yurkovich
7f5965716d