Operating system: Linux-4.19.0-13-amd64-x86_64-with-glibc2.28 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.152.00
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-27 23:51, hash: rBf3d60c68ef46
Short description of error
When using subsurface nodes on different materials edges of geometry get blurred, this doesn't append when using the principled node.
Exact steps for others to reproduce the error
Open the attached .blend, it contains 4 cubes , two uses the principled node and render correct, the other two uses the subsurface node with same parameters.
Here is a screenshot of the file :