I wasn't sure if it was a bug or a feature, but I did find it strange. There's light on an otherwise dark area.
Screenshots:
Note that there aren't any siding + light trick being used here. Also it's night, so there shouldn't be any light. There are also no floating jack o lanterns or glowstone or any of that shit, and if the lighting on the ground is any indication, the object would have had to be 3 or less blocks above the ground.
My hunch is I left a forest fire going on at this spot at some point and the leaves decayed and took the fire with it but the lighting never did. Anyone else experiencing this?