Option does not change from 'Subscribe' to 'Unsubscribe' when already subscribed to a category or thread in MB admin

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 DXP GA1, Master
• Fix Version/s: 7.0.0 DXP FP8, 7.0.0 DXP SP2, 7.0.3 CE GA4, 7.1.X, Master
• Component/s: Collaboration, Message Boards
• Labels:
  • liferay-digital-enterprise-70-sp2
  • liferay-fixpack-de-8-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Sprint: Padparadschah 10/25-11/8, Tetraferriphlogopite 12/20-1/3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/44216

When viewing the site administration for Message Boards in the control panel, while already subscribed to a thread or category, the option in the context menu does not change from "Subscribe" to "Unsubscribe."

This is similar to the issue reported by LPS-68421, but LPS-68421 only fixes the issue for the Message Boards home in the MB portlet on a page.

Steps to reproduce:
1. Navigate to Message Boards admin in the control panel
2. Create a new category or thread
3. For the created category or thread, click the category's context menu (the 3 vertical dots) by where it is listed
4. Click "Subscribe"
5. When the request completes, click the context menu again

Expected result: in both cases, the option has changed to "Unsubscribe"
Actual result: in both cases, the menu still only has the option to "Subscribe"