Fixed two code paths where pinned=false from JSONL would overwrite existing pinned=true in database: - importer.go: Only update pinned if explicitly true in JSONL - multirepo.go: Use COALESCE to preserve existing pinned value Added tests for pinned field preservation. Note: Bug may have additional code path - investigation ongoing. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>