Why: Preserve current main before publishing the U2/U3 candidate. Evidence: Exact main object fetched; browser-only upstream changes. Impact: Retain both sets of browser coverage. Refs: Agent-System-Dev U2/U3 delivery
Why: Preserve current main before publishing the U2/U3 candidate. Evidence: Exact main object fetched; browser-only upstream changes. Impact: Retain both sets of browser coverage. Refs: Agent-System-Dev U2/U3 delivery