Message board post count does not reflect correct number when you delete a message

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 5.1.2, 5.2.3, 6.0.0 Preview
• Fix Version/s: 5.1.2, 5.2.3, 6.0.0 Preview
• Component/s: Collaboration > Message Boards
• Labels: None
• Environment: All
• Branch Version/s:
  5.2.x, 5.1.x
• Backported to Branch:
  Committed

Message board post count does not reflect correct number when you delete a message. To recreate:
1) Create category "Test"
2) Create Thread 1
3) Create Thread 2
4) Reply to Thread 1 (post count for the category will be 3)
5) Delete reply on Thread 1 (post count for the category will now be 1 - Incorrect)