onlyworlds 0.45.2

• The doctor's flag 4 counts a dependency as a link on a spine world. A spine draws its edges with x_spine_depends_on, so on a world that carries the profile (any x_spine_ key, flag 13's test) a non-empty list is a link out from its element and a link in to each id it names. Before, every element of the OnlyWorlds Spine read as having no links in or out (348 of 348 on its first run through a crew seat); now 102 of 378 do, each with neither a link field nor a dependency either way. An empty list is no dependency. On any other world nothing changes. A test with a mutant watched failing.