Console error occurs when deleting file from ezbinaryfile field.

Steps:

1. Log in to admin panel.
2. Create new File CT item.
3. Upload a file to the File field.
4. Remove the file (before publishing) using Bin icon.
5. Check browser console.

Actual result: Console error occurs:

Uncaught TypeError: Cannot read property 'querySelector' of null
    at HTMLButtonElement.<anonymous> (ezplatform-admin-ui-content-edit-parts-js.js:5)
(anonymous) @ ezplatform-admin-ui-content-edit-parts-js.js:5

Remarks: Affects ezmedia field as well.