Fix bug with using configurable_fields after configurable_alternatives (#18139)

Closes #17915
2025-09-09 06:53:59 +00:00 · 2024-02-26 10:27:07 -08:00
parent f5cf6975ba
commit 62a30efb12
1 changed files with 2 additions and 0 deletions
--- a/libs/core/langchain_core/runnables/configurable.py
+++ b/libs/core/langchain_core/runnables/configurable.py
@@ -441,6 +441,8 @@ class RunnableConfigurableAlternatives(DynamicRunnable[Input, Output]):
            which=self.which,
            default=self.default.configurable_fields(**kwargs),
            alternatives=self.alternatives,
+            default_key=self.default_key,
+            prefix_keys=self.prefix_keys,
        )

    def _prepare(