Copy configurable in ensure_config

langchain-ai · Nov 19, 2024 · 2c945ce · 2c945ce
1 parent 39eabd0
commit 2c945ce
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/libs/langgraph/langgraph/utils/config.py b/libs/langgraph/langgraph/utils/config.py
@@ -280,7 +280,10 @@ def ensure_config(*configs: Optional[RunnableConfig]) -> RunnableConfig:
             continue
         for k, v in config.items():
             if v is not None and k in CONFIG_KEYS:
-                empty[k] = v  # type: ignore[literal-required]
+                if k == CONF:
+                    empty[k] = v.copy()  # type: ignore[literal-required]
+                else:
+                    empty[k] = v  # type: ignore[literal-required]
         for k, v in config.items():
             if v is not None and k not in CONFIG_KEYS:
                 empty[CONF][k] = v