Godot version:
3.2 beta 4
OS/device including version:
Zorin OS 15 (Ubuntu 18.04)
Issue description:
Outside the max range of the directional light shadows there are artifacts, there it should be no shadows at all.

Steps to reproduce:
Set up a small max range on a directional light shadow
Possible related: #559
Alright, digging some more I discovered that this bug only occurs if the material has vertex lighting activated.
Linux Mint 18.3. GeForce GTX 750 Ti, driver: nvidia 384.130
Testing with minimal reproduction project: 34529.zip
Can reproduce in 3.2.beta4, 3.2.2.stable, 3.2.3.beta1.
GLES2 only. Only appears on surfaces whose Material has Vertex Lighting enabled (as mentioned above), and when the directional light shadow mode is set to Orthogonal (Fast).
Most helpful comment
Linux Mint 18.3. GeForce GTX 750 Ti, driver: nvidia 384.130
Testing with minimal reproduction project: 34529.zip
Can reproduce in 3.2.beta4, 3.2.2.stable, 3.2.3.beta1.
GLES2 only. Only appears on surfaces whose Material has Vertex Lighting enabled (as mentioned above), and when the directional light shadow mode is set to Orthogonal (Fast).