{% comment %} Optimistic-locking conflict partial. Rendered with HTTP 409 when ``revert()`` raises ``StaleObjectError``, i.e. another writer updated the source row between the caller's load and the revert submit. HTMX swaps this into ``#dialog`` so the user sees the notice without leaving the page. Context: archive_instance: the source row. {% endcomment %} {% load i18n %}