Steps to reproduce the issue

I assign several custom fields to an article category X and then copy the custom fields using the batch function.

Expected result

If I open a custom field and save it as a copy, the copy retains the assignment to category X. Therefore, I expect the same behaviour with the batch function.

Actual result

The copies of the custom fields lose the assignment of the originals to category X.

System information (as much as possible)

j4.1.5

Additional comments