Comments are not available in web content display portlet when comments are enabled

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.1.X, Master
• Component/s: Frontend Infrastructure > UI Taglibs
• Labels: None
• Fix Priority: 4
• Last Working Version:
  7.0.0 DXP FP10
• Sprint: Yam
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/46482

Steps to reproduce:

1. Add a web content article
2. Add a Web Content Display portlet
3. Open Web Content Display portlet configuration
4. Configure portlet to display web content
5. Under "Content Metadata", select "Comments"
6. Save configuration
7. Refresh the page

Expected result: "Subscribe to Comments" link and comments editor display in Web Content Display portlet under the article.
Actual result: Link and editor are missing.

Reproduced on:
Tomcat 8.0.32 + MySQL 5.7
Portal Master GIT ID: 12ef939a72e6ac1fac2e875c905b1228915cbc4b