Comment 4 for bug 1580819

> Does the resulting snap.yaml have anything that tells 'snap install' to put into --devmode?

Sort of-- it does indeed get the "confinement" property, but its purpose will be so the snap can say "Hey, I ONLY work if I'm in devmode" in which case the snap command can say "Hey, you're trying to install a snap that requires devmode. Try using --devmode" (just as an example).