When I used "note -" it just rebuffed a blank line, not "Ok." as normal.

I tested it out with two new notes and it seems that if you add content using "note +" and then remove using "note -" it says Ok. with no problem.

However, if you add so much content to reach the point where it says "Note too long." and then you try to "note -" it will rebuff a blank line, instead of "Ok." AND it will indeed remove the line.