Fixing bug that messes up the order of models

Creating copy of original df to avoid modifying the original when ordering by date uploaded.

src/display_models/plot_results.py

@@ -36,10 +36,12 @@ def to_datetime(model_info: Tuple[str, Any]) -> datetime:
 def join_model_info_with_results(results_df: pd.DataFrame) -> pd.DataFrame:
     """
     Integrates model information with the results DataFrame by matching 'Model sha'.
-
     :param results_df: A DataFrame containing results information including 'Model sha' column.
     :return: A DataFrame with updated 'Results Date' columns, which are synchronized with model information.
     """
+    # copy dataframe to avoid modifying the original
+    df = results_df.copy(deep=True)
+
     # load cache from disk
     try:
         with open("model_info_cache.pkl", "rb") as f:
@@ -49,7 +51,7 @@ def join_model_info_with_results(results_df: pd.DataFrame) -> pd.DataFrame:
 
     # Sort date strings using datetime objects as keys
     sorted_dates = sorted(list(model_info_cache.items()), key=to_datetime, reverse=True)
-    results_df["Results Date"] = datetime.now().replace(tzinfo=timezone.utc)
+    df["Results Date"] = datetime.now().replace(tzinfo=timezone.utc)
 
     # Define the date format string
     date_format = "%Y-%m-%dT%H:%M:%S.%fZ"
@@ -60,8 +62,8 @@ def join_model_info_with_results(results_df: pd.DataFrame) -> pd.DataFrame:
         last_modified_datetime = datetime.strptime(obj.lastModified, date_format).replace(tzinfo=timezone.utc)
 
         # Update the "Results Date" column where "Model sha" equals obj.sha
-        results_df.loc[results_df["Model sha"] == obj.sha, "Results Date"] = last_modified_datetime
-    return results_df
+        df.loc[df["Model sha"] == obj.sha, "Results Date"] = last_modified_datetime
+    return df
 
 
 def create_scores_df(results_df: pd.DataFrame) -> pd.DataFrame: