User can remove default instance language without being warned

• Type: Regression Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: 7.1.X
• Fix Version/s: 7.1.X
• Component/s: Portal Configuration > Portal Instances, Portal Configuration > System Settings
• Labels:
  • QA-AUTOMATION
  • QA-FP
• Fix Priority: 3
• Last Working Version:
  7.1.10 DXP FP17
• QA Test Name:
  • LocalFile.LocalizationWithSites#AvailableSiteLocalesSubsetNotAllowed
  • LocalFile.SecurityUsecase#NoPermissionFromUnauthorizedURLAsPowerUser
  • LocalFile.UpgradeEnhancement#RemoveModulesWithSchemaVersionChange
  • LocalFile.UsersandorganizationsUsecase#MultipleUsersandOrganizations
• QA Test Score: 20

Steps to Reproduce:

1. Go to Control Panel -> Configuration -> Instance Settings.
2. Click Miscellaneous tab.
3. Under Available Languages, move English(United States) from Current to Available.
4. Click Save.

Expected result:
User is warned that he cannot remove the instance default language.

Actual result:
The default language is successfully removed, and you cannot find it in Available languages.