Hi
I'm experiencing the attached result when rendering on 1.7 RC2. Scene was done in this version, so I don't know if it has always behaved like this. It doesn't matter if I have DR enabled or not.
It seems like the opacity map doesn't ignore the reflections cast on the mesh backside.
Here I have some simple shop awnings behind street trees. If the material on the awning is reflective, it will bounce the light on the backside of the tree leaves mesh and produce the attached result.
I'm just removing the reflection on the awning material as a quick fix for the project, but I don't think it should behave like this right?