Mario Zechner 2f64df1e52 fix(coding-agent): prevent duplicate session headers when forking from pre-assistant entry ...

createBranchedSession() wrote the file and set flushed=true even when the
branched path had no assistant message. The next _persist() call saw no
assistant, reset flushed=false, and the subsequent flush appended all
in-memory entries to the already-populated file, duplicating the header
and entries.

Fix: defer file creation when the branched path has no assistant message,
matching the newSession() contract. _persist() creates the file on the
first assistant response.

closes #1672

2026-02-27 22:18:26 +01:00

18 KiB

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