When I perform `Toggle Breakpoint` in line that has no breakpoint, Tuna create a new breakpoint.

[Tomohiro Kumagai]

When I perform Toggle Breakpoint in line that has no breakpoint, Tuna set a new disabled continuous breakpoint with no action in the line.

Is this a behavior that you expect?

[Toshihiro Morimoto]

oops!
It's my stupid miss.

I expect that the new Breakpoint isn't set.