Update documents_prep.py

documents_prep.py

@@ -98,7 +98,7 @@ def chunk_text_documents(documents):
         for i, chunk in enumerate(chunks):
             # Normalize steel designations in the chunk text
             original_text = chunk.text
-            chunk.text, changes = normalize_steel_designations(chunk.text)
+            chunk.text, changes, change_list = normalize_steel_designations(chunk.text)  # FIX: 3 values
             
             if changes > 0:
                 chunks_with_changes += 1