Need to retain empty list item

I have a multivalue field which is populated by an agent and will at times correctly contain one or more empty values. The field is Computed When Composed with a formula of “” (remember, the agent supplies the value). I need to retain those empty placeholders. Yet I cannot seem to save the document without a Trim occurring. I have also tried editable and Computed fields with the same result.

The multivalue display option is NEWLINE. The SEPARATE VALUES WHEN USER ENTERS is NEW LINE and BLANK LINE.

Any ideas?

Thanks,

Marc