SAFETY-107 review: test a writer that turns round on a dead pack; say when rule 3 applies

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

goodwe_controller/DECISIONS/SAFETY-107-refusal-under-another-writer.md

@@ -37,7 +37,10 @@ probe, exactly as before the change. Then:
    while another writer is;
 2. it does not: the refusal ends, logged "another writer", or "the battery
    gives power" when the reading shows it (it was "another writer" before);
-3. it finds the other direction: end, then a new start, as before.
+3. it finds the other direction: end, then a new start, as before. In
+   practice 2 comes first: SAFETY-94's evidence restarts when the ask changes
+   sign, so a writer that turns round ends the refusal at once and the other
+   way is learned ~12 cycles later (`test_safety107.py` part 3e).
 
 **Why this rule.** The end now means what SAFETY-52 meant by it: the refusal no
 longer describes what is on the wire, judged by the same test that learns it.