The display page template doesn't display content after upgrade

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.3.4 CE GA5, 7.3.10 DXP GA1, Master
• Component/s: Page Templates > Display Page Templates
• Labels:
  • 7.3-known-issues
  • QA-AUTOMATION
  • liferay-ga4-ce-733
  • pt-upgrade-review
• Fix Priority: 4
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/1345
• Bug Type: Regression Bug
• QA Test Name:
  • LocalFile.MSBUpgrade#ViewMSBAndAddContentPageAfterUpgrade71102
  • LocalFile.MSBUpgrade#ViewMSBAndAddContentPageAfterUpgrade713
• QA Test Score: 10

Step to reproduce:

1. Start 7.1 portal
2. Site Administration > Build > Page Fragments
3. Add a new collection
4. Add a fragment
5. Insert the following codes in <div> tags of HTML section

        <lfr-editable id="title" type="text">Inline Content</lfr-editable>
   

6. Publish
7. Site Administration > Build > Pages > Display Pages tab
8. Add a display page template
9. Add the new fragment to display page template
10. Click editable field > Map
11. Select Web Content Article and Basic Web Content > Select Title
12. Publish the display page template
13. Click the ellipsis button of display page template
14. Mark As Default
15. Site Administration > Content > Web Content > Web Content tab
16. Add a WC based on Basic Web Content
17. Type WebContent as title
18. Publish
19. Access to http://localhost:8080/web/guest/-/webcontent
20. Assert WebContent is shown in display page template
21. Shutdown server
22. Upgrade to master
23. Start portal
24. Sign In
25. Access to http://localhost:8080/web/guest/w/webcontent

Expected Results:
The WebContent is shown in display page template

Actual Results:
The WebContent is not shown in display page template.
Additionally,

1. Site Builder > Page Templates > Display Page Templates
2. Assert the display page template has Approved label
3. Click the title of display page template
4. Click the back icon
5. The status of display page template becomes Draft
6. Click the title of display page template
7. Publish the display page template
8. Access to http://localhost:8080/web/guest/-/webcontent
9. The WebContent is shown in display page template

Reproduced on:
Upgrade From: 7.1.x-private GIT ID: 9ad86a893470985936f31aef8f4411dbaa29fa21.
Tomcat 9.0.33 + MySQL 5.7. Portal master GIT ID: 0a9d8a4cef3087e830a086d8f30176c27981f37b.