If we search for a test case to add to a test run, and click OK, it removes the existing test cases in that Test run.
Is that usual behaviour?
Click Edit from within a test run.
Select specific test cases>change selection.
Search for a Reference and click Set Selection.
It selects the test cases.
We then click OK and then click Save Test Run.
The result is that any test cases in that test run are replaced with the ones that we searched for.
Are we doing something wrong?