semi-rule breaking types

[movabo]

Describe the bug

It seems that the current implementation of the semi rule in some cases changes types.
When changing semi to always, the error does not occur.
Unfortunately I was not able to find the cause but I was able to create a (more or less) minimal reproducible example.

Reproduction

https://github.com/movabo/antfu-bug

System Info

System:
    OS: macOS 15.6.1
    CPU: (10) arm64 Apple M1 Max
    Memory: 288.00 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 23.9.0 - /opt/homebrew/bin/node
    npm: 10.9.2 - /opt/homebrew/bin/npm
  Browsers:
    Chrome: 146.0.7680.178
    Firefox: 149.0
    Safari: 18.6

Used Package Manager

npm

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• The provided reproduction is a minimal reproducible of the bug.

Contributions

• I am willing to submit a PR to fix this issue
• I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)