Mutiple Publish the site to Live doesn't work on the content page

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X, Master
• Fix Version/s: 7.2.10 DXP FP2, 7.2.10.1 DXP SP1, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: Pages > Page Editor
• Labels:
  • 7.2-blocker
  • QA-AUTOMATION
  • liferay-dxp-72-sp1
  • liferay-fixpack-dxp-2-7210
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 5
• Last Working Version:
  7.2.10 DXP FP1
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/78803
• QA Test Name:
  • LocalFile.ContentPagesWithStaging#PublishEditedContentPage
  • LocalFile.DisplayPagesWithStagingAndWebContent#PublishEditedDisplayPage
• QA Test Score: 10

Step to reproduce:

1. Create a new site.
2. Go to Site Administration -> Publishing -> Staging -> Enable local Live.
3. Go to the Staging site.
4. Create a content page -> Add a "Heading" component from Section Builder -> Publish the content page.
5. Go to Site Administration -> Publishing -> Staging -> Add a Custom Publication -> Publish to Live.
6. Go to the Live site, the "Heading" component displays on the content page.
7. Go to the Staging site -> Make some changes on the content page (e.g. edit text or add another component) -> Publish the content page.
8. Go to Site Administration -> Publishing -> Staging -> Add a Custom Publication -> Publish to Live.
9. Go back to the Live site, then check the changes on the content page.

Expected Results:
The changes display on the content page.

Actual Results:
The changes don't happen.

Reproduced on:
Tomcat 9.0.17 + MySQL 5.7. Portal master GIT ID: d3ac85c54e61e3806068b6f5dcf6f1b18906c183.
Tomcat 9.0.17 + MySQL 5.7. Portal 7.2.x-private GIT ID: 56bc208f4561e5a0319db6d9633967cfaf3dd416.

Can not be reproduced on:
Tomcat 9.0.17 + MySQL 5.7. Portal 7.1.x-private GIT ID: 3a5ec39ffecfe41a40ac3ef9274d02d9acb7f31d.