Oh, no I would have noticed that. Nope, mine seems solid. Looks like yours may have been dropped straight off the back of a truck! Do you know others this has happened to?
In the case of my bike A65L HE 12xxx, July 1971, maybe one of the last bikes built before the summer shutdown, maybe built on a Friday, which is after Thursday pay-day/pub-night per Tridentman, I think it started with crappy welds the day it was built. A few other points on the frame look pretty poor, weld-wise. Yes, it happens on these frames. I guess if no new oil has oozed out of your beads after cleaning, you are OK!