Function seed_template_notes 

pub fn seed_template_notes(
    review_provider: &dyn ReviewProvider,
    kind: ProviderKind,
    created: &[String],
    desc_branch: Option<&str>,
    dry_run: bool,
) -> Result<()>

Prepare each freshly created review’s body before the managed sections go in. Create-only - existing reviews keep whatever body they have.

With a repo PR/MR template (and stk.usePrTemplate on), the body is seeded from it: the --desc branch (named by desc_branch) keeps the template freeform above a seam so the description reads as a distinct block below, while every other branch wraps the template in the managed description block as the opening prose. Without a template the only cleanup is on the --desc branch, whose body create_review seeded with the commit subject when the commit had no body: that echo is dropped so the description does not sit beneath a redundant copy of the title. A branch with neither a template nor a description keeps its subject placeholder untouched. The template’s source is always the commit body, never the subject echo.