Site without site members display null in My Sites portlet

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.1.0 M1, 7.1.X, Master
• Component/s: Navigation Widgets > My Sites widget
• Labels: None
• Fix Priority: 3
• Sprint: Wilberforce
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/53712

Steps to reproduce:

1. Create a site
2. Navigate to > Test Test > My Dashboard
3. Under Sites
4. Leave the new site you have created
5. Click Available Sites

Expected result:
The number of site members should be zero (0) instead of null.

Actual result:
Site members displayed null.