OpenGraph metadata of landing pages should be item specific
The metadata in the <meta>
properties og:title
and og:description
should match the regular title
and description
.
These are used by e.g. Slack previews (https://medium.com/slack-developer-blog/everything-you-ever-wanted-to-know-about-unfurling-but-were-afraid-to-ask-or-how-to-make-your-e64b4bb9254).