Image paste from clipboard (Cmd+V) stops working after first message

Description

When using Claude Code CLI in iTerm2 on macOS, pasting images from the clipboard via Cmd+V works only for the first message in a conversation. After submitting the first prompt, Cmd+V no longer inserts images — it simply does nothing (no error, no feedback).

Steps to reproduce

1. Open Claude Code in iTerm2 (macOS)
2. Take a screenshot to clipboard (e.g. Cmd+Shift+4 configured to save to clipboard)
3. Paste with Cmd+V into the first message — works
4. Submit the message
5. Take another screenshot
6. Try to paste with Cmd+V into the second message — does not work

Additional context

• The image is confirmed to be in the clipboard (pastes fine into other apps like text editors, browsers, etc.)
• iTerm2 "Copy to pasteboard on selection" is disabled — not an iTerm2 issue
• Tested with a clean bash session in iTerm2 (no Claude Code) — clipboard works as expected
• Claude Code v2.1.85, Opus 4.6 (1M context), macOS Darwin 25.3.0

Expected behavior

Image paste from clipboard should work for every message in the conversation, not just the first one.