SDF text shows artifacts when seen with a perspective transform (world-space)

Steps to reproduce:

1. Create a custom shader with only the branch node
2. Use it in a world-sapce shader
3. Add a UIDocument showing a text with this shader
4. Observe the document in the scene view with a camera set in perspective mode, making sure it's seen at an angle

Actual results: 

UI seems to ahve some noise

Expected results: 

No noise should be visible

Reproducible with versions: Windows DX11/12

Not reproducible with versions: Metal