0.7 Build 47 - Flatten input makes it go...

Interesting thing I just noticed with the brand new build.  If you put a curve frame component on the canvas and flatten the crv input, the component lights up as if it's receiving data and everything is hunky-dorey.  Even if it isn't.  Same thing goes for a number of other components. 

Even weirder, I found that flattening either of the inputs of an Eval Srf component does nothing by themselves, but when both are flattened the component lights up grey. 

I assume this is a bug, but I don't know if this is unique to the new build, just something I never noticed before.  See attached.

  flattenMakesItGo.ghx