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fix(ollama): prevent _convert_messages_to_ollama_messages from mutating caller list (#36567)

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Fixes #36564

The method modifies messages[idx] in-place when converting v1 format
content. Add messages = list(messages) to create a shallow copy before
any mutations.

1 line change in libs/partners/ollama/langchain_ollama/chat_models.py

Co-authored-by: bahtya <bahtyar153@qq.com>
Co-authored-by: Mason Daugherty <mason@langchain.dev>
This commit is contained in:
bahtyar
2026-04-07 09:53:16 +08:00
committed by GitHub
parent e71e6564b1
commit bc21045ee0
1 changed files with 1 additions and 0 deletions
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libs/partners/ollama/langchain_ollama/chat_models.py
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@@ -865,6 +865,7 @@ class ChatOllama(BaseChatModel):
Returns:
List of messages in Ollama format.
"""
messages = list(messages) # shallow copy to avoid mutating caller's list
for idx, message in enumerate(messages):
# Handle message content written in v1 format
if (