Stop the diagnostics module handing 0071's rule to an issue it applies in its own emit

src/diagnostics/mod.rs

@@ -255,8 +255,16 @@ impl EventName {
 /// THAT IS NOT THE REDACTION RULE AND DOES NOT WEAKEN IT. 0100 requires the rule
 /// in 0071 to decide per field NAME, because 0068 places a field carrying an
 /// item identifier under its personal data list while the count beside it is
-/// not, so what the rule reads is the name and never the variant. #71 is where
-/// that rule is built and this module decides none of it.
+/// not, so what the rule reads is the name and never the variant. THIS SENTENCE
+/// SAID #71 IS WHERE THAT RULE IS BUILT AND THAT THIS MODULE DECIDES NONE OF IT.
+/// The rule is in [`redaction`], which this module registers and imports from,
+/// and [`Diagnostics::emit`] applies it before the client's sink is called: a
+/// field the name excludes is dropped, a field the name reduces is replaced by a
+/// correlator, and the rest is carried whole. What decides none of it is this
+/// TYPE, which is what the paragraph is about: a variant here is a shape of data
+/// and never a treatment. What of #71 is still absent is the test that drives a
+/// session, which [`redaction`] states in its own header. #481 is where it was
+/// found.
 ///
 /// A sentence written out for a person is not among them and is the thing this
 /// type exists to make unwritable. A value with the numbers already substituted