Get error if the content type include file field and use entity reference selection view.

Dear Dev:

I found a issue. when content type include file field. Following is Detail:
1. Two content types. A content type reference B content type.
2. A content type has two field. firstly is file field. secondly is entity reference to B content type title
3. We use Entity reference selection view mode in A content type and filter B content title.

After we upload some image or audio, when click save button it will be get the illegal value.
If we don't upload any attachment, all things is working fine.