diff --git a/wp-admin/edit-form-blocks.php b/wp-admin/edit-form-blocks.php
index 1ed9fb0792..f85503d575 100644
--- a/wp-admin/edit-form-blocks.php
+++ b/wp-admin/edit-form-blocks.php
@@ -86,7 +86,7 @@ if ( 'auto-draft' === $post->post_status ) {
 		$initial_edits['title'] = $post->post_title;
 	}
 
-	if ( post_type_supports( $post->post_type, 'content' ) ) {
+	if ( post_type_supports( $post->post_type, 'editor' ) ) {
 		$initial_edits['content'] = $post->post_content;
 	}
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 59abe8469c..43c45e7a97 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52230';
+$wp_version = '5.9-alpha-52231';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.