Metadata Uploader - Storing duplicate metadata fields with the same label

[ksierks]

What needs changed?

Should we add a unique database constraint to the label column in the metadata_field table?

How does it work now?

I am able to create multiple entries in the with the same label with the following line of code:
templateService.saveMetadataField(new MetadataTemplateField(label, "text"));

How should it work?

I think labels (and type) should be unique for data cleanliness.

Additional information

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