🐛 fix a bug in process_sequence_classification to ensure no 500 when populating detection field of ContentAnalysisResponse for HF models with no problem_type in their config

Author: m-misiura

detectors/huggingface/detector.py

@@ -253,7 +253,7 @@ def process_sequence_classification(self, text, detector_params=None, threshold=
                         ContentAnalysisResponse(
                             start=0,
                             end=len(text),
-                            detection=getattr(self.model.config, "problem_type", "sequence_classification"),
+                            detection=getattr(self.model.config, "problem_type", None) or "sequence_classification",
                             detection_type=label,
                             score=prob,
                             text=text,