style: make NaN rejection explicit in score_sigma validation

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DnsaJg74eNSva3PJjK2eej
2026-08-04 21:38:48 +02:00
parent f4e2922d59
commit 6b8bd786d7
1 changed files with 1 additions and 1 deletions
@@ -779,7 +779,7 @@ impl<T: Time, D: Drift<T>, O: Observer<T>, K: Eq + Hash + Clone> History<T, D, O
                }
                crate::Outcome::Scored { scores, sigma } => {
                    let resolved = sigma.unwrap_or(self.score_sigma);
-                    if !(resolved > 0.0) {
+                    if resolved <= 0.0 || resolved.is_nan() {
                        return Err(InferenceError::InvalidParameter {
                            name: "score_sigma",
                            value: resolved,