Page comment replies are not properly rendered

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.2.10 DXP FP2, 7.2.10.1 DXP SP1, Master
• Component/s: Collaboration > Comments
• Labels:
  • liferay-dxp-72-sp1
  • liferay-fixpack-dxp-2-7210
• Fix Priority: 5
• Epic Link: lima-page-review
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/77065

Steps to reproduce:

1. Enable comments in Configuration > System Settings > Pages > Content Page Editor
2. Add a new content page with a fragment
3. Select the fragment and add a comment
4. Reply to the comment in the sidebar

Expected result:
Comment reply is displayed with inputted text.

Actual result:
Regardless of what is inputted as a reply, 37892 is shown. No console or browser errors appear.

Note: This is not reproducible in replies for message boards/blogs.

Reproduced on:
Tomcat 9.0.17 + MySQL 5.7.
Portal master eb9bbdd9ef9860b1e83b98123cd7d9b4ceeeccc6