Bug Description

When editing a note the section heading is duplicated.

Steps To Reproduce

Steps to reproduce the behavior:

1. Write a new note and tell the LLM to add a section heading "Testing"
2. Tell the LLM to edit the "Testing" section to add some content

Expected Behavior

After the edit there should only be one section heading "Testing"

Actual Behavior

There are two "Testing" headings.

Environment

• OS: any
• Basic Memory version: v0.15.2
• Installation method: homebrew

Additional Context

https://logfire-us.pydantic.dev/basic-memory/basic-memory-cloud?q=trace_id%3D%27019a075c79f1e259fba4e55b0014ba98%27+and+span_id%3D%276f2b9ab740a333f8%27&spanId=6f2b9ab740a333f8&traceId=019a075c79f1e259fba4e55b0014ba98&env=-clear-&since=2025-10-21T15%3A21%3A32.401218Z&until=2025-10-21T15%3A21%3A32.401218Z

Possible Solution

We could possibly instruct the LLMs better, or we could handle it in the API calls with filtering or something.