Re: [w3c/webcomponents] Algorithms in 6.3. Sequential Focus Navigation are too complex (#496)

Ok, thank you for the clarification. I think I have a better understanding of Step 2 now: the outer loop (2.1) iterates through all elements in a tree (in document order) and the inner loop (2.1.2) walks up the tree from each element to find its scope owner; if the element is a descendant of a slot, it only gets added to the slot's focus scope if that slot has no assigned nodes. So, a slot's focus scope becomes the owner of either its assigned nodes or, if there are no assigned nodes, its descendants.

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