function onSelect(state, { accessible, response: ancestry, error }) {
if (error) {
console.warn("Error fetching ancestry", accessible, error);
return state;
}
const { path, expanded } = updateExpandedNodes(state.expanded, ancestry);
const selected = TreeView.subPath(path, accessible.actorID);
return Object.assign({}, state, { expanded, selected });
}
const path = ancestry.reduceRight((accPath, { accessible }) => {
accPath = TreeView.subPath(accPath, accessible.actorID);
expanded.add(accPath);
return accPath;
}, "");