Changes touching this path

• adopt_harbor stops open-coding load_shared_lineage's pair, because the branch its bool drives already sat on the far side of the ADR 0047 hold refresh the seam performs in the same order, and the tip it loads is an owned Oid the mirror spine hands back rather than a borrow of self, so the one copy of tonight's drift whose bool is load-bearing collapses without moving the refusal (#1461) e07e49da · dbf3dbe6…

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