Test: consent to one of two requests leaves the other unconsented (Soul low)

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

crates/weksa/tests/lower.rs

@@ -503,6 +503,21 @@ fn a_request_without_its_consent_is_refused_not_invented() {
     );
 }
 
+#[test]
+fn consent_to_one_of_two_requests_leaves_the_other_unconsented() {
+    let (inv, _dir) = committed();
+    let mut p = asked();
+    let mut second = p.predications[0].clone();
+    second.id = nd("n5");
+    p.predications.push(second);
+    assert_eq!(
+        lowered(&p, &inv),
+        Err(LowerError::ConsentMissing {
+            predication: nd("n5")
+        })
+    );
+}
+
 #[test]
 fn a_request_by_someone_other_than_the_addressee_is_refused() {
     let (inv, _dir) = committed();