
In this case the comment, if missing in the destination pane, is included in the difference and, if you copy the block from one pane to the other, you copy the comments too.
Fine.
Then, if you ask to ignore also the amount of white space and the blank lines, the comment lines are always completely ignored.
Wow, Very good.
But if you copy the block from one pane to the other you copy the comments too, exactly like before, even if the comments are NOT shown as included in the block...