Check In/Check out/Cancel Checkout incorrectly updates last post date of DLFolder

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.1.30 EE GA3, 6.2.0 CE RC3
• Fix Version/s: 6.1.X EE, 6.2.0 CE RC5
• Component/s: Documents & Media, Documents & Media > Administration
• Labels:
  • QA-F
  • QA-PORTAL
  • ee-ts
  • liferay-fixpack-document-management-10-6130
• Branch Version/s:
  6.1.x
• Backported to Branch:
  Committed
• Story Points: 5
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/14450

1. Admin > Site Administration > Content > Documents and Media
2. Add Folder called "test"
3. Navigate to "test" folder and add Basic Document "testdoc"
4. Check lastPostDate for "test" (you can see the column in the DLFolder table)
5. Wait two minutes
6. Edit "testdoc" and add text to description. Publish.
7. Check lastPostDate again.

Actual Result:
Last post date is not set to the correct date.

Expected Result:
Last post date should be updated to date of last post.