Fix side effects on message history (#3619)

Co-authored-by: Reinier van der Leer <github@pwuts.nl>

autogpt/memory_management/summary_memory.py

@@ -1,3 +1,4 @@
+import copy
 import json
 from typing import Dict, List, Tuple
 
@@ -44,7 +45,9 @@ def get_newly_trimmed_messages(
     return new_messages_not_in_context, new_index
 
 
-def update_running_summary(current_memory: str, new_events: List[Dict]) -> str:
+def update_running_summary(
+    current_memory: str, new_events: List[Dict[str, str]]
+) -> str:
     """
     This function takes a list of dictionaries representing new events and combines them with the current summary,
     focusing on key and potentially important information to remember. The updated summary is returned in a message
@@ -61,17 +64,23 @@ def update_running_summary(current_memory: str, new_events: List[Dict]) -> str:
         update_running_summary(new_events)
         # Returns: "This reminds you of these events from your past: \nI entered the kitchen and found a scrawled note saying 7."
     """
+    # Create a copy of the new_events list to prevent modifying the original list
+    new_events = copy.deepcopy(new_events)
+
     # Replace "assistant" with "you". This produces much better first person past tense results.
     for event in new_events:
         if event["role"].lower() == "assistant":
             event["role"] = "you"
+
             # Remove "thoughts" dictionary from "content"
             content_dict = json.loads(event["content"])
             if "thoughts" in content_dict:
                 del content_dict["thoughts"]
             event["content"] = json.dumps(content_dict)
+
         elif event["role"].lower() == "system":
             event["role"] = "your computer"
+
         # Delete all user messages
         elif event["role"] == "user":
             new_events.remove(event)