Issue Summary

Editing the avatar in Assets Object View throws a unique attribute error. Editing the avatar from the object list view works without any issues.

This is reproducible on Data Center: yes

Steps to Reproduce

1. Create object type where two attributes have the constraint "unique".
2. Go to the asset view screen
3. Hit the edit button
4. Add an avatar, and update.
5. Hit the edit button again
6. Remove the avatar
7. Hit Update

Expected Results

Avatar was removed and the asset was saved.

Actual Results

The asset is not saved and both unique attributes throw the message "the attribute... has to be unique".

Workaround

Please use the 'Edit' option from the Object list view to update the avatar.