fix: update rehype-remark (#3864)

packages/netlify-cms-widget-markdown/package.json

@@ -29,7 +29,7 @@
     "react-monaco-editor": "^0.25.1",
     "react-select": "^2.4.3",
     "rehype-parse": "^6.0.0",
-    "rehype-remark": "^5.0.1",
+    "rehype-remark": "^8.0.0",
     "rehype-stringify": "^7.0.0",
     "remark-parse": "^6.0.3",
     "remark-rehype": "^4.0.0",

packages/netlify-cms-widget-markdown/src/serializers/__tests__/index.spec.js

@@ -1,6 +1,6 @@
 import path from 'path';
 import fs from 'fs';
-import { markdownToSlate } from '../';
+import { markdownToSlate, htmlToSlate } from '../';
 
 describe('markdownToSlate', () => {
   it('should not add duplicate identical marks under the same node (GitHub Issue 3280)', () => {
@@ -41,3 +41,25 @@ describe('markdownToSlate', () => {
     });
   });
 });
+
+describe('htmlToSlate', () => {
+  it('should preserve spaces in rich html (GitHub Issue 3727)', () => {
+    const html = `<strong>Bold Text</strong><span><span> </span>regular text<span> </span></span>`;
+
+    const actual = htmlToSlate(html);
+    expect(actual).toEqual({
+      object: 'block',
+      type: 'root',
+      nodes: [
+        {
+          object: 'block',
+          type: 'paragraph',
+          nodes: [
+            { object: 'text', text: 'Bold Text', marks: [{ type: 'bold' }] },
+            { object: 'text', text: ' regular text' },
+          ],
+        },
+      ],
+    });
+  });
+});