Issue Summary

 
Pressing enter in the object screen clears a referenced object attribute.
 
It's similar to JSDSERVER-15284, but only happens when the object has an attribute with cardinality > 1 and with multiple referenced objects set in the attribute.
 
Each "Enter" key press, one object is removed from the list.

Steps to Reproduce

1. Create an object with an attribute with the type "object".
2. Set this attribute's cardinality to any value > 1.
3. Edit an object, adding multiple objects in this attribute.
4. In the Object page, edit the object.
5. In the edit screen, each enter key press clears an object from the attribute. The focus can be on anything from the page.

Expected Results

The enter should apply the changes on the page or in the focused attribute.

Actual Results

Each enter key press clears an object from the attribute. The focus can be on anything on the page.

Workaround

Edit the object from the Main Assets view (with the tree at the left panel). 

Versions Tested

Please confirm all versions that have been tested for this issue, and indicate whether the tested version is affected or not affected, below: