corepack seems to obey LOCALAPPDATA silently

Platform : WSL2

If because of reasons you have WSLENV=WT_SESSION:WT_PROFILE_ID:LOCALAPPDATA/p:USERPROFILE/p:APPDATA/p to pass through LOCALAPPDATA & APPDATA to your WSL2 environment then you get permissions errors when trying to use yarn + corepack

bsh ❯ corepack enable
bsh ❯ COREPACK_ENABLE_DOWNLOAD_PROMPT=0 yarn install
node:internal/fs/promises:783
  return await PromisePrototypeThen(
         ^

Error: EACCES: permission denied, rename '/mnt/c/Users/.../AppData/Local/node/corepack/v1/corepack-774055-2af6683f.7bd48' -> '/mnt/c/Users/.../AppData/Local/node/corepack/v1/yarn/4.7.0'
    at async Object.rename (node:internal/fs/promises:783:10)
    at async renameSafe (/home/.../.nvm/versions/node/v22.14.0/lib/node_modules/corepack/dist/lib/corepack.cjs:21935:5)
    at async installVersion (/home/.../.nvm/versions/node/v22.14.0/lib/node_modules/corepack/dist/lib/corepack.cjs:21903:5)
    at async Engine.ensurePackageManager (/home/.../.nvm/versions/node/v22.14.0/lib/node_modules/corepack/dist/lib/corepack.cjs:22323:32)
    at async Engine.executePackageManagerRequest (/home/.../.nvm/versions/node/v22.14.0/lib/node_modules/corepack/dist/lib/corepack.cjs:22423:25)
    at async Object.runMain (/home/.../.nvm/versions/node/v22.14.0/lib/node_modules/corepack/dist/lib/corepack.cjs:23110:7) {
  errno: -13,
  code: 'EACCES',
  syscall: 'rename',
  path: '/mnt/c/Users/.../AppData/Local/node/corepack/v1/corepack-774055-2af6683f.7bd48',
  dest: '/mnt/c/Users/.../AppData/Local/node/corepack/v1/yarn/4.7.0'
}

This never used to happen, and I'm not sure if it's 'yarn' or 'corepack' that is the issue (there aren't any PRs or issues that mention appdata that seem related).

My current workaround is to use direnv to unset both those environment variables

Start by reproducing the WSL2 setup with WSLENV passing through LOCALAPPDATA and APPDATA, then trace the failing rename in dist/lib/corepack.cjs during corepack enable and yarn install. Done means Corepack handles this environment without an EACCES failure, with behavior covered by an appropriate regression test.