Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: Quadro P4000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.96
Broken: version: 2.80 (sub 51), branch: master, commit date: 2019-03-21 08:29, hash: rBb346a7c0df38
Short description of error
Not sure if this is only on my end, but since this morning I see the anit-aliasing in the workbench engine behave the opposite of how it should be. Normally, when the scene is not interacted with, the AA would happen. While you navigate in the 3D View, AA levels would be reduced or even turned off to improve performance. However, with this build, it's the opposite. The scene is anti-aliased while interacting, and aliased while static. See the gif below:
Exact steps for others to reproduce the error
Open Blender compiled today, spin a model, look at the edges.