Tournaments with multiple games are a fact. But they don’t occur frequently, so they aren’t on top list of issues to be solved.
When that happens you can look at game page: only one has the “tournament” link active and it’s the one that will be taken into account for the tournament itself.
Nope, the game we played with MadEagle had the tournament link active as well. That’s what I used to return to the tournament page to see what was going on.
EDIT: Hm, it doesn’t have it now?! That’s adding to weird.