Snapshot sound effect with option turned off

When I do a group snapshot, I hear the shutter sound effect even if the option to “Play shutter sound when shapshots are taken” is un-checked.

To reproduce, load the tutorial project.
Turn off “Play shutter sound when snapshots are taken”
Select all the sub-documents of “The Inspector”
Take a snapshot.

The sound effect occurs when I use the keyboard shortcut (CMD 5) or the “take titled snapshot” toolbar button, so i don’t think the method of invoking the feature seems to matter.

I tried toggling it on and off again, and I’ve experienced this with multiple projects, all created before the most recent update (including the tutorial).

Thanks. I’ve fixed this for the next update.