Not cleared image control gives error in Admin -> Product image upload

Steps to reproduce:

1. Go to admin -> product -> list -> edit any product -> go to pictures tab -> upload a file -> add product picture.

2. Delete just added picture.

3. Click on add product picture again.

You see an error which is because we did not cleared picture control on this page when we successfully added product picture to grid.

Hope this would help.

Hello Atul.

We know about this situation, but we dont see a simple way to clearing this control. We do not consider it a bug, because this is not a typical user behaviour, but if you know how to fix this please help us by contributing necsassery changes to our project on GitHub.