Strange behavoiur for prefixing property `user-select`

Sandbox demo: https://stackblitz.com/edit/stackblitz-starters-ssfut1yt?file=lightningcss.js

I have CSS:

pre {
  user-select: all;
}

On this moment, Safari doesn't support user-select without vendor-prefix.

For adding prefixes i use this browserslist config:

last 2 versions
not dead

And code for compiling:

import * as lightningcss from 'lightningcss';
import browserslist from 'browserslist';

const browsers = browserslist();
const targets = lightningcss.browserslistToTargets(browsers);

console.log('browserslist: ', browsers);
console.log('lightningcss: ', targets);

const result = await lightningcss.bundleAsync({
  targets,
  filename: './styles.css',
});

console.log(result.code.toString());

i get unprefixed code:

pre {
  user-select: all;
}

but Safari is in the list:

browserslist:  [
  'and_chr 133',  'and_ff 135',
  'and_qq 14.9',  'and_uc 15.5',
  'android 133',  'chrome 133',
  'chrome 132',   'edge 133',
  'edge 132',     'firefox 135',
  'firefox 134',  'ios_saf 18.3',
  'ios_saf 18.2', 'kaios 3.0-3.1',
  'kaios 2.5',    'op_mini all',
  'op_mob 80',    'opera 114',
  'opera 113',    'safari 18.3',
  'safari 18.2',  'samsung 27',
  'samsung 26'
]

lightningcss:  {
  and_chr: 8716288,
  and_ff: 8847360,
  android: 8716288,
  chrome: 8650752,
  edge: 8650752,
  firefox: 8781824,
  ios_saf: 1180160,
  op_mob: 5242880,
  opera: 7405568,
  safari: 1180160,
  samsung: 1703936
}

LightningCSS Playground have correct prefixed code.

Postcss have another result.

Start with the StackBlitz lightningcss.js reproduction and inspect the targets produced by browserslistToTargets before bundleAsync runs. Compare the generated user-select output with the LightningCSS Playground for the same Safari targets. Done means the compiler emits the required vendor-prefixed declaration for the reported targets without changing unrelated output.