Whirl effect showed on sprite when only fisheye was set

[jwzimmer-zz]

Expected Behavior

I expect setting an effect to 0 to erase the effect, and I don't expect to see whirl when I have chosen fisheye.

Actual Behavior

Something weird happened with fisheye/ whirl; setting the value to 0 didn't remove the effect until I changed fisheye to whirl

The effect looks like whirl, but I only have fisheye set for this sprite:

Changing fisheye -> whirl in the set [effect] to 0 block returned the sprite to normal:

More pics of the fisheye/ whirl stuff

This effect on the J looks like whirl, although whirl isn't being used here. It is being used on another sprite iirc.

This effect looks like fisheye.

On stopping the project, for some reason the J looks like it has "whirl" on it; resetting fisheye effect to 0 doesn't remove the appearance. But changing fisheye -> whirl in the set to 0 block does.

Operating System and Browser

Mac OS X El Capitan 10.11.6, Chrome Version 56.0.2924.87 (64-bit)

[thisandagain]

Moved to scratchfoundation/scratch-render#151