PRO-7811: Rich text modified state not detected correctly by the backend (#4982)

Author: myovchev

CHANGELOG.md

@@ -12,6 +12,7 @@
 ### Fixes
 
 * Add missing Pages manager shortcuts list helper.
+* Improve the `isEmpty` method of the rich text widget to take into account the HTML blocks (`<figure>` and `<table>`) that are not empty but do not contain any plain text.
 
 ## 4.18.0 (2025-06-11)
 

modules/@apostrophecms/rich-text-widget/index.js

@@ -837,8 +837,11 @@ module.exports = {
       },
 
       isEmpty(widget) {
-        const text = self.apos.util.htmlToPlaintext(widget.content || '');
-        return !text.trim().length;
+        const content = (widget.content || '').trim();
+        const text = self.apos.util.htmlToPlaintext(content).trim();
+        return text.length === 0 &&
+          content.includes('<table') === false &&
+          content.includes('<figure') === false;
       },
 
       sanitizeHtml(html, options) {