Additional Breadcrumb appears navigating through other portlet

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.0.0 DXP FP79, 7.0.10.11 DXP SP11, 7.0.X, 7.1.X, Master
• Component/s: Message Boards
• Labels:
  • breadcrumb
  • ee-ts
  • liferay-dxp-70-sp11
  • liferay-fixpack-de-79-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/56280

Description
An additional breadcrumb is shown within the Message Boards portlet when a blog entry is viewed.

Steps to Reproduce

1. Create a blog entry
2. Drag & Drop a Blog portlet
3. Drag & Drop a Message Boards portlet
4. Click on the blog entry created

Actual result: The Blog portlet navigates to the blog entry detail screen and a new breadcrumb appears in the Message Boards portlet with the title of the blog entry.

Expected: The Blog portlet navigates to the blog entry detail screen and Message Boards portlet remains in the same navigation hierarchy.