chore: improve optimize reports stability

freqtrade/optimize/optimize_reports/bt_output.py

@@ -287,9 +287,9 @@ def text_table_add_metrics(strat_results: dict) -> None:
             if "trading_mode" in strat_results
             else []
         )
-
+        wallet_metrics: list[tuple[str, str]] = []
         if wallet_stats := strat_results.get("wallet_stats"):
-            wallet_metrics = (
+            wallet_metrics = [
                 (
                     "Min/Max balance realized",
                     f"{fmt_coin(strat_results['csum_min'], stake)} / "
@@ -304,7 +304,7 @@ def text_table_add_metrics(strat_results: dict) -> None:
                     "Min/Max balance dates",
                     f"{wallet_stats['low_date']} / {wallet_stats['high_date']}",
                 ),
-            )
+            ]
 
         # Newly added fields should be ignored if they are missing in strat_results. hyperopt-show
         # command stores these results and newer version of freqtrade must be able to handle old