Looks like an unfortunate typo - it should say "and there are no matches within that set." Because it doesn't match, you'll keep the offset, but repeat processing the list - the first two +3 then change the offset to 7 and 10, which finally gives you the second repeat.
Hope that helps!
Yep. Now it is clear.
I was confused with the problem statement and had exactly the same confusement as described here: reddit.com/r/adventofcode/comments....
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