[BUG] subpath-patterns does not work correctly

[chenyulun]

https://nodejs.org/dist/latest-v16.x/docs/api/packages.html#subpath-patterns

"exports": {
    "./features/*": "./src/features/*.js",
    "./features/private-internal/*": null
}

console.log(resolve(contents, './features/private-internal/m')); // no error
// Expect the result
// Throws: ERR_PACKAGE_PATH_NOT_EXPORTED

"exports": {
    "./features/private-internal/*": null
    "./features/*": "./src/features/*.js",
}

console.log(resolve(contents, './features/private-internal/m'));
// => Error: No known conditions for "./features/private-internal/m" entry in "foobar" package