Say that a set shared value stands between a new default and the assignments it reached (ADR 0319 review)

03-DESIGN/01-to-be/27-a-module-requires-the-mesh-resolves.md

@@ -221,7 +221,8 @@ reads the shared value, and only when that is unset too its default; read from t
 winning: the default, the shared value, the module's mesh-wide layer, the node's. So a person sets
 the interface font size once and every module that names it follows, while any one module or node
 can still be set apart in its own layer. A shared value is a fourth place of change beside the three
-of ADR 0164, and the plan of a change to it names every assignment, of every module that reads it,
+of ADR 0164 (a new default no longer reaches an assignment whose shared value is set), and the plan
+of a change to it names every assignment, of every module that reads it,
 whose effective value moves. It is set and cleared through the `settings` verb without a module, and
 both `settings` listings name the shared name as a value's source beside the default, the mesh and the
 node. **A shared value reaches no trusted setting** (ADR 0319): a trusted setting may not declare a