--resume with full -p prompt returns empty response in v2.1.143

Description

v2.1.143: when --resume is combined with -p containing full history, Claude Code returns empty content immediately. No errors — just finish_reason:stop with empty delta.

Steps to Reproduce

1. Create session: claude -p "search for X" --session-id <uuid> --output-format stream-json --verbose
2. Resume with full history: claude --resume <uuid> -p "original_question + assistant_reply + followup" --output-format stream-json --verbose
3. T2 returns only: {"delta":{},"finish_reason":"stop"} data:[DONE]

Workaround

• Downgrade to v2.1.138, or
• Only pass the latest user message in -p on resume (not full history)

Environment

• Windows 11, v2.1.143
• Model: deepseek-v4-pro via new-api proxy
• Spawned via: asyncio.create_subprocess_exec + pythonw.exe