alternateIdentifier field is not deletable in Fabrica form

[KellyStathis]

Describe the bug

Expected Behaviour

When there are no alternate identifiers in a record, the alternateIdentifiers section should not be there.

Current Behaviour

After adding and removing a blank alternateIdentifier, this blank alternateIdentifier remains in the Fabrica form and metadata.

Steps to Reproduce

1. Create test DOI with minimal metadata only (no alternateIdentifiers)

Metadata from initial test DOI:

2. Click "Update DOI (Form)" and add a blank alternate identifier
   

3. Click "Update DOI" to save

Metadata after adding blank alternate identifier:

4. Click "Update DOI (Form)" again and remove the blank alternate identifier
   

5. Click "Update DOI" to save

Metadata after removing blank alternate identifier - still shows blank alternate identifier:

Context (Environment)

Screenshots

See above steps to reproduce.

Further details

I tested this with other fields and it looks like the problem is limited to alternateIdentfier, but it would be good to verify this.

Proposal

Hypothesis

n/a

Possible Implementation

n/a

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