FIX preserve rationale-less float scores

Author: barry166

pyrit/score/float_scale/float_scale_score_aggregator.py

@@ -94,8 +94,7 @@ def _build_rationale(scores: list[Score], *, aggregate_description: str) -> tupl
         rationale = scores[0].score_rationale or ""
     else:
         description = aggregate_description
-        # Only include scores with non-empty rationales
-        rationale_parts = [format_score_for_rationale(s) for s in scores if s.score_rationale]
+        rationale_parts = [format_score_for_rationale(s) for s in scores]
         rationale = "\n".join(rationale_parts) if rationale_parts else ""
 
     return description, rationale

tests/unit/score/test_float_scale_score_aggregator.py

@@ -94,6 +94,18 @@ def test_float_scale_aggregator_category_deduplication():
     assert results[0].category == ["Hate"]  # Should be deduplicated
 
 
+def test_float_scale_aggregator_preserves_scores_without_rationales():
+    scores = [
+        _mk_score(0.5, rationale="explained"),
+        _mk_score(0.7),
+    ]
+
+    result = FloatScaleScoreAggregator.MAX(scores)[0]
+
+    assert "explained" in result.rationale
+    assert result.rationale.count("UnitTestScorer") == 2
+
+
 def test_float_scale_aggregator_multiple_categories_preserved():
     """Test that multiple unique categories are preserved and sorted."""
     scores = [