Metadata field activation

[BK01]

Is your feature request related to a problem? Please describe.

Currently when a user provides a metadata URL to an existing record, this wil prevent ARGG from creating a duplicate record. However, it does not deactivate the metadata fields from the form. Although these will be ignored, it may cause confusion for users as well as cost them time filling out unnecessary fields.

Describe the solution you'd like

When a user provides a URL for an existing metadata record, deactivate any fields that are specific to creating a new draft metadata record. For example, the 'Access' section of the submission form would no longer need to be filled out.