Wrong default language is allowed in Web Content

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, 7.2.X, 7.3.X, Master
• Fix Version/s: 7.1.10 DXP FP22, 7.1.X, 7.2.10 DXP FP11, 7.2.10.4 DXP SP4, 7.2.X, 7.3.10 DXP FP1, 7.3.10.1 DXP SP1, 7.3.6 CE GA7, 7.3.X, 7.4.13 DXP GA1, Master
• Component/s: Web Content > Web Content Administration
• Labels:
  • liferay-dxp-72-sp4
  • liferay-dxp-73-sp1
  • liferay-fixpack-dxp-1-7310
  • liferay-fixpack-dxp-11-7210
  • liferay-fixpack-dxp-22-7110
• Branch Version/s:
  7.3.x, 7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/dacousalr/liferay-portal/pull/302

Steps to reproduce

1. Start Liferay
2. Set System Settings > Web Content > Administration > Changeable Default Language as true
3. Set en_US, es_ES as instance languages and en_US as the default language of the instance
4. Go to Global site and create a new structure with a single English field named test. Save the new structure.
5. In that new structure, go to "Edit default values" and save.
6. Create a new site with es_ES as single and default language
7. Create a new web content in this site using the global structure.

Expected behavior
Spanish is the only available language, since it is the only available language in the site.

Current behavior
English (en_US) is also shown as an available language.

Additional information

PTR-2244