[Bug] Welcome screen displays incorrect model name "Sonnet 4.6" instead of valid model

Bug Description
Claude Code v2.1.47 ──────────────────────────────────────────────────────────────────────────────────────────────╮
│ │ Tips for getting started │
│ Welcome back SH! │ Run /init to create a CLAUDE.md file with instructions for Claude │
│ │ Note: You have launched claude in your home directory. For the best experience, launc… │
│ │ ────────────────────────────────────────────────────────────────────────────────────── │
│ │ Recent activity │
│ ✻ │ 1d ago /clear │
│ | │ 1d ago clear │
│ ▟█▙ │ 1d ago claude install │
│ ▗ ▗ ▖ ▖ │ /resume for more │
│ │ │
│ ▘▘ ▝▝ │ │
│ Sonnet 4.6 · Claude Pro │ │
│ /Users/shahnx

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.47
• Feedback ID: 6572a4ea-a784-43db-b53f-b0a0c6fbdedf

Errors

[{"error":"RangeError: stdout maxBuffer length exceeded\n    at unknown\n    at onData (node:child_process:153:110)\n    at emit (node:events:95:22)\n    at addChunk (internal:streams/readable:264:47)\n    at readableAddChunkPushByteMode (internal:streams/readable:242:18)\n    at handleNumberResult (internal:streams/native-readable:69:18)\n    at <anonymous> (internal:streams/native-readable:43:68)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-19T22:22:33.453Z"}]