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"Affect Alpha" in Texture Paint mode doesn't work as expected
Closed, ResolvedPublic

Description

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-24 12:32, hash: rBbfe580642f46

Short description of error
When in Texture Paint mode, brush strokes of the smear or soften brush still affect the alpha channel of the texture that is being painted on, even when "Affect alpha" is unchecked in the active tool tab.

Exact steps for others to reproduce the error
Create a texture with transparent areas. Go to texture paint mode to either paint in the image editor or on a mesh. Use the smear brush or soften brush with "Affect Alpha" disabled.
The texture's alpha channel is still affected by the brush strokes.
Example file: