Merge branch 'm-kovalsky/synonyms'

Author: m-kovalsky

src/sempy_labs/_list_functions.py

@@ -1621,8 +1621,7 @@ def list_synonyms(dataset: str | UUID, workspace: Optional[str] = None):
                         merged_terms = defaultdict(dict)
                         for t in v.get("Terms", []):
                             for term, properties in t.items():
-                                normalized_term = term.lower()
-                                merged_terms[normalized_term].update(properties)
+                                merged_terms[term].update(properties)
 
                         for term, props in merged_terms.items():
                             new_data = {