[MSDTS Merge] Channel preview url has redundant parameters.

The issue was found by e2e test. After it is fixed the test should pass well.

HAP Scenario " From the list view, the preview site can be opened"

Scenario: 

1. Go to Channel perspective and switch to the list view (top right button)
2. For Hippo Acceptance Project channel open the "preview" link in the new browser tab.

Problem: URL contains several pareameters like: http://localhost:8080/site/_cmsinternal/?org.hippoecm.hst.container.render_host=localhost&cmsCSID=52f177b9-fcca-47ae-9dc1-2796a8535ba8&cmsSCID=33ff3bf0-54b1-4931-8d36-e593b375a3e1

Expected: Url should be without parameters like http://localhost:8080/site/_cmsinternal/