The user is able to select an already related entry on the Relationship modal

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.4.3.22 CE GA22, Master
• Component/s: Objects
• Labels:
  • 7.4-known-issues
  • liferay-ga1-dxp-7413
  • liferay-ga10-ce-743
  • liferay-ga11-ce-743
  • liferay-ga12-ce-743
  • liferay-ga13-ce-743-known-issue
  • liferay-ga14-ce-743-known-issues
  • liferay-ga15-ce-743-known-issues
  • liferay-ga16-ce-743-known-issues
  • liferay-ga17-ce-743-known-issues
  • liferay-ga18-ce-743-known-issues
  • liferay-ga19-ce-743-known-issues
  • liferay-ga20-ce-743-known-issues
  • liferay-ga21-ce-743-known-issues
  • liferay-ga4-ce-743
  • liferay-ga5-ce-743
  • liferay-ga6-ce-743
  • liferay-ga7-ce-743
  • liferay-ga8-ce-743
  • liferay-ga9-ce-743
  • liferay-u1-dxp-7413
  • liferay-u2-dxp-7413
  • pt-app-security-review
• Fix Priority: 4
• Git Pull Request: https://github.com/liferay-objects/liferay-portal/pull/547

Summary:
The user is able to select an already related entry on the Relationship modal

Steps to Reproduce:

1. Create an Object A and an Object B
2. Create a Relationship One to Many or Many to Many from Object A with Object B
3. Create a Layout with a Relationship tab on Object A
4. Publish both object
5. Add entries on both Objects
6. Go to Object A
7. Click on an entry
8. Click on the Relationship tab
9. Add an entry from Object B
10. Click on the add button again

Expected Result:
Already related entry is not displayed

Actual Result:
Already related entry is displayed

Verified on master: ae34eebc0d53b5006ecd7cd84ac37735319b4bc2