Improving topic quoting (PR #10747)

It is possible to post a link in one topic (Topic A) to another topic (Topic B) on the same Discourse site. This will be rendered as a quote, with the title of the quote being Topic B’s title. The category of the Topic B will be included next to the title of Topic B.

If a subsequent reply to Topic A includes a quote from the quoted text of Topic B, the title of new quote should not include the category of Topic B.