Error in Wiki portlet after creating a required Vocabulary

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 DXP SP3, 7.0.0 DXP FP15, 7.0.X EE, Master
• Fix Version/s: 7.0.0 DXP FP22, 7.0.0 DXP SP4, 7.0.X EE, 7.0.4 CE GA5, 7.1.X, Master
• Component/s: Wiki
• Labels:
  • QA-V
  • backend_test
  • liferay-digital-enterprise-70-sp4
  • liferay-fixpack-de-22-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/49697

1. Select the Global Site
2. Go to Categories and add a new Vocabulary:

• Name: "test"
• Associated Asset Types: Add "Wiki Page"
• Set as required

3. Open Wiki in sidebar

Actual Result: Error "Portlet is temporarily unavailable"
Expected Result: No error, main Wiki node is displayed.