An error occurred when trying to change the site default language in the Liferay site

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, 7.2.X
• Fix Version/s: 7.1.10 DXP FP18, 7.1.X, 7.2.10 DXP FP1, 7.2.X, 7.2.1 CE GA2, Master
• Component/s: Sites Administration > Sites
• Labels:
  • QA-AUTOMATION
  • ee-bp
  • liferay-fixpack-dxp-1-7210
  • liferay-fixpack-dxp-18-7110
• Branch Version/s:
  7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/victorg1991/liferay-portal/pull/27
• QA Test Name:
  • LocalFile.LocalizationWithSites#AvailableSiteLocalesSubsetNotAllowed
• QA Test Score: 5

Step to reproduce:

1. Navigate to Product Menu >Liferay DXP > Configuration > Settings
2. Go to Languages tab
3. Change Default Language to Spanish

Except Result: Can change it suceesfully.
Actual Result: Can not change it and there is a error: Site name is required for the default language.