MC-39756: An image added to the Content via Page Builder is not counted in "Used In" counter.

Author: engcom-Foxtrot

app/code/Magento/MediaGalleryRenditions/etc/media_content.xml

@@ -9,7 +9,7 @@
     <search>
         <patterns>
             <pattern name="media_gallery_renditions">/{{media url=(?:"|&amp;quot;)(?:.renditions)?(.*?)(?:"|&amp;quot;)}}/</pattern>
-            <pattern name="media_gallery">/{{media url="?((?!.*.renditions).*?)"?}}/</pattern>
+            <pattern name="media_gallery">/{{media url="?(?:.*?\.renditions\/)(.*?)"?}}/</pattern>
             <pattern name="wysiwyg">/src=".*\/media\/(?:.renditions\/)*(.*?)"/</pattern>
             <pattern name="catalog_image">/^\/?media\/(?:.renditions\/)?(.*)/</pattern>
             <pattern name="catalog_image_with_pub">/^\/pub\/?media\/(?:.renditions\/)?(.*)/</pattern>

app/code/Magento/MediaGalleryUi/Test/Mftf/ActionGroup/AssertAdminEnhancedMediaGalleryUsedInSectionDisplayedActionGroup.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <actionGroup name="AssertAdminEnhancedMediaGalleryUsedInSectionDisplayedActionGroup">
+        <annotations>
+            <description>Assert used in section is displayed in view details.</description>
+        </annotations>
+
+        <seeElement selector="{{AdminEnhancedMediaGalleryViewDetailsSection.usedIn}}" stepKey="assertUsedInPresent"/>
+    </actionGroup>
+</actionGroups>