Overview:

When uploading multiple documents, the values of the object-type fields are not correctly stored even after clicking the Apply button. The values get lost.

Detailed Steps to Reproduce:
When a user uploads multiple documents at a time, it is possible to set field values for each document.

1. Upload 2 or 3 files at a time.
2. Set different values for an object-type field A for each document at first and then click Apply.
3. Select all the documents, and object-type field A shows blank since the value is different for each document.
4. Set a value for Field B such as Title for all the documents and then click Apply.
5. The value gets updated for Field B for all the documents, but the value of the object-type field A for all the documents gets cleared out, even though the values are set in step 2.

Root Cause:

This is working as designed.

There are differences in the design of object-type vs non-object type fields. Object-type fields in the multi-file upload are always set to the values displayed when clicking Apply, including blank. Non-object type fields are left unchanged if in conflict and left blank.

Solution: