Bloom intensity broken with Post Processing Material replacing Tonemapper

When replacing the Tonemap using a Post Process material, the Post Process Volume's Bloom Intensity can only be turned on or off, without varying degrees of effect.

Reported in version 4.25.3(CL 13942748). Tested in versions 4.25.3 and 4.24.3(CL 11590370) with same result.

1. Create a PostProcess material replacing the Tonemapper given the guide on your Wiki under the "Replacing the Tonemapper" heading: https://docs.unrealengine.com/en-US/Engine/Rendering/PostProcessEffects/PostProcessMaterials/index.html
2. Add to Post Process material as an Array Element 

Results: The tonemapper will work, except Bloom Intensity no longer works.

Expected: You can set Bloom Intensity to 0 and it will turn off, but setting it to any other number will turn it on, but you'll have no control over the intensity.