[Bug] Default model reverts to Haiku after removing config files

Bug Description
I removed (ok renamed) all claude config and dot-files. Wanted to start afresh for whatever reason. After that I noticed Haiku is now called the default model? Setting sonnet does no longer say "default", and "model" : "sonnet" gets explicitly added to ~/.claude/settings.json

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.0.36
• Feedback ID: 4cb7b719-57d5-4492-b6a8-f5b4dcbbd8aa

Errors

[{"error":"Error\n    at <anonymous> (B:/~BUN/root/claude.exe:41:20125)\n    at <anonymous> (B:/~BUN/root/claude.exe:59:10240)\n    at emitError (node:events:43:23)\n    at <anonymous> (B:/~BUN/root/claude.exe:58:1146)\n    at emitError (node:events:43:23)\n    at <anonymous> (node:_http_client:249:22)\n    at processTicksAndRejections (native:7:39)\n    at request (B:/~BUN/root/claude.exe:61:2146)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-09T03:22:09.821Z"},{"error":"Error\n    at <anonymous> (B:/~BUN/root/claude.exe:41:20125)\n    at <anonymous> (B:/~BUN/root/claude.exe:59:10240)\n    at emitError (node:events:43:23)\n    at <anonymous> (B:/~BUN/root/claude.exe:58:1146)\n    at emitError (node:events:43:23)\n    at <anonymous> (node:_http_client:249:22)\n    at processTicksAndRejections (native:7:39)\n    at request (B:/~BUN/root/claude.exe:61:2146)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-09T03:22:12.136Z"},{"error":"AbortError: The operation was aborted.\n    at unknown\n    at abortChildProcess (node:child_process:947:42)\n    at onAbortListener2 (node:child_process:35:24)\n    at abort (unknown)\n    at <anonymous> (B:/~BUN/root/claude.exe:4038:10596)","timestamp":"2025-11-09T03:22:12.792Z"}]