Comments pagination doesn't show all comments

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.0.0 DXP FP85, 7.0.10.12 DXP SP12, 7.0.X, 7.1.X, Master
• Component/s: Collaboration, Comments
• Labels:
  • backend_test
  • liferay-dxp-70-sp12
  • liferay-fixpack-de-85-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1.25
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/41671

Steps to reproduce:

1. Add a Blogs portlet into a page.
2. Create a new blogs entry.
3. Add the comment structure described later to the blogs entry.
4. Reload the blogs entry view.
5. Click the "more comments" button until it doesn't show anymore

Expected: All available comments are shown while paginating.
Actual: Not all comments are displayed.

Comment structure:

+-1
|  |- 1.1
|  |  \-1.1.1
|  |- 1.2
|  |  \- 1.2.1
|  |- 1.3
|  |- 1.4
|  |- 1.5
|  \_ 1.6
|- 2
|- 3
|- 4
|- 5
|- 6
|- 7
|- 8
|- 9
|- 10
|- 11
|- 12
|- 13
|- 14
\_ 15