Gameplay setting "Double Jump executes Void Sling" does nothing! Same behavior regardless of whether on or off.

[SteveCutler]

As the title says:

The gameplay setting "Double Jump executes Void Sling" does nothing.

I get the exact same behavior, regardless of whether this setting is turned or turned off. Either way, performing a double jump executes the void sling.

I've searched around, and found some bug reports saying that this setting can't be toggled off in the UI, or that it automatically turns back on. In my case, I can toggle it off in the UI, and it does stay turned off. It's just that the toggle doesn't seem to have any actual gameplay effect.