scroll click breaks block

pretty self-explanatory, I scroll-click a sign, I have to retype it. I scroll-click a chest, the items come out, I scroll-click a hopper, I faces down, rather than left/right/north/you get the point.

it does break the block, but it re-places it as if using commands. I hate this bug because it destroys hundreds(exaggeration BTW) of red stone worlds using int. no, int! TNT!!! NOT INT!!!