Broken sexy comment when comment goes over a non-indented empty line

[romgrk]

At some point, the behavior for sexy comments started being wrong. If a comment spans over an non-indented empty line, the sexy comment indentation is 0. I expect the indentation to be the same as the lowest indent of non-empty lines. Note that compact sexy comments also leave an additional empty space; I would expect a comment/uncomment to cancel each other.

Before	After commenting	After un-commenting