IsLocationRevealed & Scouting layer

[Rukgul]

Is the function VaFogLayer::IsLocationRevealed designed to work on all layers. My testing seems to indicate that the Scouting layer will always return false. I believe because the SourceBuffer is cleared at the end of the tick cycle in in UpdateBuffers. The Permanent layer is working as expected, but scouting is returning false under all conditions.