More detail about pre-release, preState is not used

[riskers]

i found this issue: #69

My pre.json on alpha branch:

{
  "mode": "pre",
  "tag": "alpha",
  "initialVersions": {
    "@riskers12/a": "2.2.0-alpha.4",
    "@riskers12/b": "2.0.2-alpha.4"
  },
  "changesets": [
    "gorgeous-nails-try",
    "shy-ligers-impress"
  ]
}

publishing pre-release(alpha) is worked.

Once alpha merge in main, Github Action occur:

/home/runner/setup-pnpm/node_modules/.bin/pnpm changeset version
🦋  warn ===============================IMPORTANT!===============================
🦋  warn You are in prerelease mode
🦋  warn If you meant to do a normal release you should revert these changes and run `changeset pre exit`
🦋  warn You can then run `changeset version` again to do a normal release
🦋  warn ----------------------------------------------------------------------
🦋  All files have been updated. Review them and commit at your leisure

I try to delete pre.json in Github Action, it is useless.

[riskers]

readChangesetState returns preState, but it's not be used: https://github.com/changesets/action/blob/main/src/index.ts#L36