openclaw - 💡(How to fix) Fix Session model override from Codex persists in unrelated sessions (e.g. Telegram)

Bug Report

Summary: When selecting a model in Codex that uses a different auth profile (e.g. github-copilot/claude-sonnet-4.6 with a secondary OAuth account), the model override gets pinned to the main session key (e.g. agent:luis:telegram:direct:...), affecting unrelated sessions like a Telegram direct chat.

Steps to reproduce:

1. Have a main session (e.g. Telegram direct chat) using the default model (openai/gpt-5.5)
2. Open Codex and select a model that uses a different auth profile (e.g. github-copilot/claude-sonnet-4.6 via secondary OAuth account)
3. Return to the Telegram session
4. Run /status — the session is now pinned to the Codex model with a session override warning

Expected behavior: Model overrides made inside Codex should be scoped to the Codex session only and not leak to other sessions sharing the same agent.

Actual behavior: The Codex model override persists in the main Telegram session, showing:

⚠️ Reason: session override
⚠️ This session is pinned to github-copilot/claude-sonnet-4.6; config primary openai/gpt-5.5 will apply to new/unpinned sessions.

Workaround: Run /reset manually after using Codex with a different model/auth profile.

Environment:

• OpenClaw 2026.5.27
• Channel: Telegram direct chat
• Codex model: github-copilot/claude-sonnet-4.6 (secondary OAuth account)