FIX: Restore author on non-first-post crawler views

app/views/topics/show.html.erb

@@ -51,7 +51,7 @@
         <% end %>
       </div>
 
-      <% if @topic_view.posts&.first && !@topic_view.posts.first.is_first_post? %>
+      <% if @topic_view.crawler_posts&.first && !@topic_view.crawler_posts.first.is_first_post? %>
         <span itemprop='author' itemscope itemtype="http://schema.org/Person">
           <meta itemprop='name' content='<%= @topic_view.topic.user.username %>'>
           <link itemprop='url' href='<%= Discourse.base_url %>/u/<%= @topic_view.topic.user.username %>'>

spec/requests/topics_controller_spec.rb

@@ -5261,6 +5261,23 @@ def invite_group(topic, expected_status)
         )
       end
 
+      it "includes top-level author metadata when the view does not include the OP naturally" do
+        get "#{topic.relative_url}/2"
+        expect(body).to have_tag(
+          "[itemtype='http://schema.org/DiscussionForumPosting'] > [itemprop='author']",
+        )
+
+        get "#{topic.relative_url}/27"
+        expect(body).to have_tag(
+          "[itemtype='http://schema.org/DiscussionForumPosting'] > [itemprop='author']",
+        )
+
+        get "#{topic.relative_url}?page=2"
+        expect(body).to have_tag(
+          "[itemtype='http://schema.org/DiscussionForumPosting'] > [itemprop='author']",
+        )
+      end
+
       context "with canonical_url" do
         fab!(:topic_embed) { Fabricate(:topic_embed, embed_url: "https://markvanlan.com") }
         let!(:user_agent) do