Cannot change the value of player settings in a content containing multiple ezmedia field types.

Steps to reproduce:
1. Create a content type that contains 2 ezmedia field types,
2. Go to Content Structure,
3. Create a new content of newly created content type,
4. Add media files to both fields,
5. Go to a first field,
6. Try to change a value of any checkboxes in the Player settings section.

Expected result:
The checkbox is set to enabled state.

Actual result:
The checkbox is not updated.