When page named "a" is created on users site, user can't view Blogs in Blog widget

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.0 Beta 3, 7.1.X, Master
• Fix Version/s: 7.1.10 DXP FP3, 7.1.1 CE GA2, 7.1.10.1 SP1, 7.1.X, Master
• Component/s: Page Templates > Display Page Templates
• Labels:
  • INACTIVE
  • ee-ts
  • liferay-dxp-71-sp1
  • liferay-fixpack-dxp-3-7110
  • profiq
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Story Points: 0.25
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/64155

Steps:

1. Create new Blank site
2. Create new public Widget page with name 'a'
3. Navigate to Content -> Blogs
4. Create new Blog
5. Navigate to your site
6. Add Blogs widget
7. View detail of your created blog

I've tried also page called 'b' and it worked correctly

Expected result: Detail of blog can be viewed correctly
Actual result: Error message displayed, blog can't be viewed

Reproducible:

• CentOS, MySQL 5.6, Tomcat 9.0.6, FF 60
• 7.1.x nightly Master git ID: d9f7363cd10669f983909ea9b6454e8df03fe0f7

Fix priority: S4 + L1 = 3