Signing and Publishing a site causes its optional files to stop downloading.

If I'm downloading optional files, I must not sign and publish, because it stops optional files downloading and has an irreversible effect on those optional files, remaining incompletely downloaded

The issue names no files, tests, or entry points. Reproduce the sequence of downloading optional files, then signing and publishing a site, and trace the signing/publishing and optional-file download paths; done means optional files continue downloading without being left incompletely downloaded or irreversibly affected.

索引モデルが issue の本文から書いたものです。