If a Test with a dataset removed from Test execution, all corresponding entities gets removed

Description: If a Test with a dataset is removed from Test execution, all corresponding entities get removed.

Pre-conditions: NA

How to reproduce

1. Create a Test case with Dataset and add it to a Test Execution.
2. Remove the Test case from the Test Execution
3. All corresponding entities, including the Test run, dataset etc. get removed

Actual result/Attachments: All entities get removed. 

Expected result: All entities should remain intact.