Page Editor sidebar missing when user only has Update asset entry permission

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.3.1 CE GA2, 7.3.2 CE GA3, 7.3.10 DXP GA1, Master
• Component/s: ~[Archived] WCM
• Labels:
  • QA-AUTOMATION
• Fix Priority: 3
• Last Working Version:
  Master
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/86599
• QA Test Name:
  • LocalFile.ContentPagesWithPermissions#EditBlogsEntryWithBlogEntryUpdatePermission
  • LocalFile.ContentPagesWithPermissions#EditContentWithUpdateWebContentAndUpdatePageContentPermissions
  • LocalFile.ContentPagesWithPermissions#EditContentWithWebContentArticleUpdatePermission
  • LocalFile.ContentPagesWithPermissions#EditInlineContentWithUpdatePageContentPermission
  • LocalFile.ContentPagesWithPermissions#MapInlineContentWithUpdatePageContentPermission
  • LocalFile.ContentPagesWithPermissions#ViewContentViaContentPanelWithWebContentArticleUpdatePermission
• QA Test Score: 28

Step to reproduce:

1. Add a new user
2. Add a new site role with the following permission:
   • Web Content > Web Content Article: Update
3. Assign new user to default site
4. Assign new site role to user
5. Site Admin > Site Builder > Content&Data
6. Add a new WC based on Basic Web Content
7. Site Builder > Pages
8. Add a page based on Blank
9. Add an AP portlet to page
10. Configure AP
11. Manual > Basic Web Content
12. Save and Publish
13. Logout and Login as new user
14. Navigate to content page
15. Click the pencil icon button on the right upper corner.

Expected Results:
The page editor sidebar should be shown in the right border.

Actual Results:
The page editor sidebar is missing. And the following error is thrown in browser console.

Reproduced on:
Tomcat 9.0.17 + MySQL 5.7. Portal master GIT ID: 563dc037f8816938b79492180c370710b845e1e2.