System.exit() doesn't exit

In a confirmation delegate for a quit confirmation dialog, I'm finding that System.exit() does not terminate the app.
The call seems to be completely ignored, and the app keeps on going.
Is it a bug, or is there something that I'm missing ?

And... I tried to include the code here as text, but the forum web page gives me an error.
What is the trick to showing code ?

Screen image attached.
I forgot the comment next to Toybox.System.exit()
Just like System.exit(), and Sys.exit(), it does not terminate the app. community.garmin.com/.../1248761.jpg