Behavior of pressing Control-K twice is a bit odd

Behavior of pressing ^K^K is a bit odd — it joins lines. 

I can sort-of see logic behind this — killing the \n — but I think forward Delete at end of the line is the typical and safer way to achieve that.

May I suggest making ^K executed at end of a line to behave like Shift ^K? (as if the cursor was after \n, not before \n)

That would be similar to what nano/pico editors do.