Staging can't be turned on with page scoped content

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.1.10 DXP FP1, 7.1.1 CE GA2, 7.1.10.1 SP1, 7.1.X, Master
• Component/s: Staging
• Labels:
  • 7.1-could
  • 7.1-ga1-known-issue
  • QA-AUTOMATION
  • liferay-dxp-71-sp1
  • liferay-fixpack-dxp-1-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 5
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/61208

Reproduction:

1. Add a widget which can be scoped, e.g. Blogs
2. Config the widget -> Scope tab -> Create a new Page scope
3. Go to control panel -> Content -> Select the page scope
4. Navigate to Web Content
5. Add a new Web Content
6. Turn on staging

Actual:
Error: An unexpected error occurred with the initial staging publication. org.springframework.dao.DataIntegrityViolationException: Could not execute JDBC batch update; SQL [insert into Group_ (mvccVersion, uuid_, companyId, creatorUserId, classNameId, classPK, parentGroupId, liveGroupId, treePath, groupKey, name, description, type_, typeSettings, manualMembership, membershipRestriction, friendlyURL, site, remoteStagingGroupCount, inheritContent, active_, groupId) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)]; constraint [null]; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update

Exception on console
Stack trace

master 50b613be9