Site role can not be selected when adding a Site Role rule if the site has a user with that role

• Type: Regression Bug
• Status: In Progress
• Resolution: Unresolved
• Affects Version/s: 3.0 RC1, 3.0 RC2, 3.0 RC3
• Fix Version/s: None
• Component/s: Content Targeting
• Labels: None
• Fix Priority: 3

Steps to reproduce:

1. Go to Liferay Site > Members > Site Memberships.
2. Assign a site role to Test user.
3. Go to Site > Configuration > Audience Targeting, Add a User Segment.
4. Add Site Role rule, choose Liferay site.

Actual result:
The role that assigned to Test user cannot be selected.

Expected result:
All the listed roles can be selected.