During rendering the object edges are treated correctly, but on completion the background environment is suddenly mixed in with the object edge as if Keep Environment is turned on (its off). This results in a halo on object edges when compositing with the alpha.
You can kill the render before it completes and retain the correct edges without those background pixels mixed in. But if it completes they get applied. Happens when rendering to the PV only. LV doesn't seem to have this issue. Oddly, if you check 'Keep Environment' with straight alpha you get double brightness at the edges - as if the environment is being added twice.
Is there a setting hidden somewhere other than the 'Keep Environment' in the Kernel? I have Alpha and Straight Alpha checked in render settings. Denoising is Off. Render Passes are off. sRGB, Tonemapped.
2020.1-RC3, R20.
