Unable to checkout file entry in Documents and Media in Remote Staging unless File Shortcut is added

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X, 7.1.10 DXP FP11, 7.1.X, 7.2.0 RC3, 7.2.X, Master
• Fix Version/s: 7.2.10 DXP FP1, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: DM, Staging
• Labels:
  • 7.2-should
  • QA-B
  • QA-V
  • liferay-fixpack-dxp-1-7210
• Branch Version/s:
  7.2.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Sprint: 028 - Sandslash
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/74576

This bug is reproducible in Local Stagging also

Steps:
1. Enable Remote Staging
2. Add Documents and Media widget > Upload a file entry
3. Publish > Publish to Remote Live
4. Assert file entry in Remote Live
5. On Staging, go to Site Admin > Web Content > Documents and Media
6. Checkout file entry
7. Publish to Remote Live
8. Assert file entry is checkout in Remote Live
9. On Staging, add File Shortcut to file entry
10. Publish to Remote Live

Expected Results:
The shortcut is not published to Live, the old version of the file is still published in Live with "APPROVED" status.

Actual Results:
The shortcut is published to Live.

Environment:

Tomcat 9.0.17 + MySQL 5.7 + Firefox 66.0.4 + DXP 7.2.10 RC3