consolidate tags, hide date

CHDataManagement/Views/Posts/PostDetailView.swift

@@ -76,6 +76,16 @@ struct PostDetailView: View {
                     title: "Linked page",
                     selectedPage: $post.linkedPage,
                     footer: "The page to open when clicking on the post")
+                .onChange(of: post.linkedPage) { oldValue, newValue in
+                    if newValue != nil {
+                        post.tags = []
+                    } else {
+                        // Link removed, so copy tags from previous link
+                        if let oldValue {
+                            post.tags = oldValue.tags
+                        }
+                    }
+                }
 
                 LocalizedPostDetailView(post: post.localized(in: language))
             }