6.0 to 7.0 upgrade - Text editor is unusable on MB portlet and is not upgraded to CKEditor

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 CE RC1
• Fix Version/s: 7.0.0 CE RC1
• Component/s: Collaboration
• Labels:
  • LR7UPGRADE
  • QA-AUTOMATION
• Fix Priority: 5
• Sprint: Zebra Mocha
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/37381
• Bug Type: Code Upgrade

I am testing on:
Tomcat 8.0.32 + MySQL 5.6. Portal 7.0.x GIT ID: 427fb138b6710f7d1ad0417af15eaf8a9557b0d5.

Steps to reproduce:

1. Start up portal on 6.0 CE
2. Add a page and add a MB portlet to the page
3. Add a MB thread
4. Shutdown portal, then execute an upgrade using the upgrade tool
5. Start up portal on 7.0 CE
6. Navigate to the MB portlet and click to view the MB thread with the UI console open

Actual results: UI console throws the following JS errors. Also when a user clicks to add a new MB thread on the portal, the old text editor shows up, but it is unusable, please see attached screenshot for more details.

ReferenceError: _com_liferay_message_boards_web_portlet_MBPortlet_initEditor is not defined
http://localhost:8080/web/guest/message-boards/-/message_boards/message/10328
Line 18 

Expected results: Text editor for MB should be upgraded to use CKEditor and no errors should occur on the UI console.