fix(OpenAI Node): Limit chat history to context window when using memory #13137
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Summary
When using the OpenAI "message assistant" operation with memory, the full chat history would be sent to the assistant, instead of limiting to the context window configured in the memory node. This should now be fixed by leveraging the
loadMemoryVariables
method.Related Linear tickets, Github issues, and Community forum posts
Fixes #12958
Review / Merge checklist
release/backport
(if the PR is an urgent fix that needs to be backported)