**System Information**
Operating system: Windows 10 64bit
Graphics card: 2060
**Blender Version**
Broken: 2.90.0
**Short description of error**
Getting weird render result for a simple shader on GPU and CPU OSL.
**Exact steps for others to reproduce the error**
https://blenderartists.org/t/procedural-shader-appears-different-in-cycles/1256261/4?u=lehuan5062