/o/headless-admin-user/v1.0/my-user-account/sites return incorrect totalCount when pageSize is greater than the actual totalCount

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.3.10 DXP GA1, Master
• Fix Version/s: 7.1.10 DXP FP21, 7.1.X, 7.2.10 DXP FP10, 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, Master
• Component/s: Headless Admin Content API
• Labels:
  • liferay-dxp-72-sp4
  • liferay-dxp-73-sp1
  • liferay-fixpack-dxp-1-7310
  • liferay-fixpack-dxp-10-7210
  • liferay-fixpack-dxp-21-7110
• 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/liferay-headless/liferay-portal/pull/457

Steps to Reproduce:

1. Login and make sure you have more than 4 sites.
2. Navigate to localhost:8080/o/api?endpoint=http://localhost:8080/o/headless-admin-user/v1.0/openapi.json
3. Under 'Default' find the /v1.0/my-user-account/sites api.
4. Click try it out and execute a request.
5. Check the totalCount that is returned.
6. Set the pageSize to be less than the totalCount and execute another request.
7. Check the totalCount that is returned.

Expected Result:

• The new totalCount should be the same as the first totalCount.

Actual Result:

• The new totalCount is equal to the pageSize and does not reflect the actual totalCount.