While examining my engine bay before I go to the trouble of a vacuum and smoke test, I came across this on the line from the upper intake to the charcoal canister. There’s some kind of union piece where the lines meet, with a hose clamp on the end nearest the intake. I gave it a small tug and it wasn’t loose, but wondering if this is normal, or if it indicates a repair, possibly a half-ass one, was done at some point instead of just replacing the whole line...