DM comments do not carry over after upgrading to 7.0

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.1 CE GA2
• Fix Version/s: 7.0.1 CE GA2
• Component/s: ~ [Archived] Collaboration
• Labels:
  • KNOWNISSUES_DE70
  • LR7UPGRADE
  • collab-upgrades
• Fix Priority: 5
• Sprint: Bixbite, Calciocelsian
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/39069

Steps to reproduce:

1. Start up 6.1.30 or 6.2.10 EE
2. Add documents in DM
3. Add comments to document
4. Export the database and save the data folder
5. Upgrade to 7.0
6. Start portal
7. Navigate to document with comments

Expected result
Comments from 6.1 or 6.2 are present

Actual result
No comments are present

Upgraded from:
MySQL 5.5.48
Liferay EE 6.1.30.5
Liferay EE 6.2.10.15

Reproduced on:
Tomcat 8.0.32 + MySQL 5.6
Liferay DXP DE 7.0 B3

Upgraded from:
Oracle 11
Liferay EE 6.1.30.5

Reproduced on:
Tomcat 8.0.32 + Oracle 12
Liferay Portal ee-7.0.x b9ce80a0b1579f9538e02390a7339ac1c97dd32c