Use metadata util in code block to keep id and name

packages/block-library/src/code/transforms.js

@@ -3,6 +3,14 @@
  */
 import { createBlock } from '@wordpress/blocks';
 import { create, toHTMLString } from '@wordpress/rich-text';
+import { privateApis as blockEditorPrivateApis } from '@wordpress/block-editor';
+
+/**
+ * Internal dependencies
+ */
+import { unlock } from '../lock-unlock';
+
+const { getTransformedMetadata } = unlock( blockEditorPrivateApis );
 
 const transforms = {
 	from: [
@@ -14,17 +22,27 @@ const transforms = {
 		{
 			type: 'block',
 			blocks: [ 'core/paragraph' ],
-			transform: ( { content } ) =>
-				createBlock( 'core/code', { content } ),
+			transform: ( { content, metadata } ) =>
+				createBlock( 'core/code', {
+					content,
+					metadata: getTransformedMetadata( metadata, [
+						'id',
+						'name',
+					] ),
+				} ),
 		},
 		{
 			type: 'block',
 			blocks: [ 'core/html' ],
-			transform: ( { content: text } ) => {
+			transform: ( { content: text, metadata } ) => {
 				return createBlock( 'core/code', {
 					// The HTML is plain text (with plain line breaks), so
 					// convert it to rich text.
 					content: toHTMLString( { value: create( { text } ) } ),
+					metadata: getTransformedMetadata( metadata, [
+						'id',
+						'name',
+					] ),
 				} );
 			},
 		},
@@ -51,8 +69,14 @@ const transforms = {
 		{
 			type: 'block',
 			blocks: [ 'core/paragraph' ],
-			transform: ( { content } ) =>
-				createBlock( 'core/paragraph', { content } ),
+			transform: ( { content, metadata } ) =>
+				createBlock( 'core/paragraph', {
+					content,
+					metadata: getTransformedMetadata( metadata, [
+						'id',
+						'name',
+					] ),
+				} ),
 		},
 	],
 };