Added hook for extension filters on tag blog posts

code/model/BlogTag.php

@@ -42,6 +42,17 @@ class BlogTag extends DataObject implements CategorisationObject {
 		'URLSegmentExtension',
 	);
 
+	/**
+	 * @return DataList
+	 */
+	public function BlogPosts() {
+		$blogPosts = parent::BlogPosts();
+
+		$this->extend("updateGetBlogPosts", $blogPosts);
+
+		return $blogPosts;
+	}
+
 	/**
 	 * {@inheritdoc}
 	 */