Feedback and my feedback module not working Properly(Same issue in test)

1. Feedback listing not proper in my feedback.
Step1: Add new feed back with 1 student
Step2: Edit it and add one more student
Step3: now check in my feed back in 1st student side.
Step4: All student are listed in my feedback screen of 1st student. Also able to give feedback of another student which is listed.

2. Not able to delete student or employee from feedback.

3. Not able to assign student or employee from assign to screen.

4. Error on loading when trying to remove assign student or employee

5.Not able to delete student or employee from Feedback Type Master Detail

6. clear button not working in Feedback Type Detail
