Not the flagged message is linked in the email

• Type: Task
• Status: Closed
• Priority: Critical
• Resolution: Completed
• Affects Version/s: Master
• Fix Version/s: 7.0.X, 7.1.X, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: Message Boards
• Labels:
  • 7010-sp-pending
  • 7110-sp-pending
  • ee-ts
  • liferay-dxp-72-sp1
  • liferay-fixpack-dxp-2-7210
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/79630

Steps to reproduce:

1. Do the necessary settings and preparations in order to see the emails sent by the portal. (I used fakeSMTP program)
2. Place a Message Boards portlet on a page and create a new thread.
3. Then add a few replies (messages) to this thread.
4. Pick one message (e.g. the last one) and click on the flag icon in order to flag this message as inappropriate.
5. Checkpoint: Notice that an email is sent by the portal, containing a link which has a messageId at the end, like:

             http://localhost:8080/web/guest/home/-/message_boards/message/35702

6. Now flag another message in the thread.
      Result: Check out the new email and assess that the messageId in the URL is the same. 
      Expected: Since this notification pertains to another message, probably the messageId should be different. In customer's words: "We expect that for each flagged message, we receive a unique URL and to that message"