feat: Skip trade deepcopy if the callback isn't implemented

closes freqtrade#10946

Author: xmatthias

freqtrade/strategy/strategy_wrapper.py

@@ -23,9 +23,11 @@ def strategy_safe_wrapper(f: F, message: str = "", default_retval=None, supress_
     @wraps(f)
     def wrapper(*args, **kwargs):
         try:
-            if "trade" in kwargs:
-                # Protect accidental modifications from within the strategy
-                kwargs["trade"] = deepcopy(kwargs["trade"])
+            if not (getattr(f, "__qualname__", "")).startswith("IStrategy."):
+                # Don't deep-copy if the function is not implemented in the user strategy.``
+                if "trade" in kwargs:
+                    # Protect accidental modifications from within the strategy
+                    kwargs["trade"] = deepcopy(kwargs["trade"])
             return f(*args, **kwargs)
         except ValueError as error:
             logger.warning(f"{message}Strategy caused the following exception: {error}{f}")