Extra roots; defaults to remeshContextRoots(store, view, targets). A
relationship root contributes its single references to the walk, but its
list-valued ones are narrowed to what the subgraph already holds; the
relationship is dropped if that empties one of its lists.
targets
targets:ReadonlySet<number>
Elements to mesh. Tombstoned or unknown ids are skipped.
Extra roots; defaults to
remeshContextRoots(store, view, targets). A relationship root contributes its single references to the walk, but its list-valued ones are narrowed to what the subgraph already holds; the relationship is dropped if that empties one of its lists.