Add EventPrefix to CMS Page/Block Collection

Author: osrecio

app/code/Magento/Cms/Model/ResourceModel/Block/Collection.php

@@ -18,6 +18,13 @@ class Collection extends AbstractCollection
      */
     protected $_idFieldName = 'block_id';
 
+    /**
+     * Event prefix
+     *
+     * @var string
+     */
+    protected $_eventPrefix = 'cms_block_collection';
+
     /**
      * Perform operations after collection load
      *

app/code/Magento/Cms/Model/ResourceModel/Page/Collection.php

@@ -25,6 +25,13 @@ class Collection extends AbstractCollection
      */
     protected $_previewFlag;
 
+    /**
+     * Event prefix
+     *
+     * @var string
+     */
+    //protected $_eventPrefix = 'cms_page_collection';
+
     /**
      * Define resource model
      *