Cannot save edit to a Comment in Workflow Tasks

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, Master
• Fix Version/s: Master
• Component/s: Comments
• Labels:
  • QA-AUTOMATION
  • QA-FP
  • fw_fix_pending
  • fw_test_poshi
  • pt-app-security-review
• Fix Priority: 4
• Last Working Version:
  7.1.10 DXP GA1
• Sprint: 023 - Ekans
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/71029
• QA Test Name:
  • LocalFile.WorkflowPageComments#EditCommentAssignedToMe
• QA Test Score: 5

Steps to Reproduce:

1. Go to Control Panel > Configuration > Workflow
2. Go to Schemes tab
3. Set "Comment" to "Single Approver" workflow
4. Go to a page
5. Add "Page Comments" widget
6. Add a comment
7. Click "Reply"
8. Go to Notifications
9. Click on notification for comment in workflow
10. Assign task to me
11. Click the icon to edit the comment
12. Input a new value for the comment
13. Click "Save"

Expected Result:
Comment edit can be saved after edit in Workflow Tasks.

Actual Result:
Comment is not saved, User is given an error, "Your request failed to complete."
Console throws:

ERROR [http-nio-8080-exec-1][MVCPortlet:584] null is not a valid include

Reproduced on:
Master: de8e99b7a7856204cc4a785205ac9f83f19e3618
7.1.x-private: f3bb0aa016e64d6d5d029b30b786f6ec8ae07820