Wrong default loaded (JSON Key...) and displayed in the embargo key

This line here

format_strawberryfield/src/Plugin/Field/FieldFormatter/StrawberryBaseFormatter.php

Line 191 in 8f4a772

'#default_value' => $this->getSetting('upload_json_key_source'),

The data in JSON Key(s) where the files to be used by this formatter where uploaded/store in your JSON is being loaded in When embargo is used or applied, alternate JSON Key(s) where the files to be used by this formatter where uploaded/store in your JSON.
So, require to change it to embargo_json_key_source.

'#default_value' => $this->getSetting('embargo_json_key_source'),

[DiegoPino]

@todhamma thanks so much. Do you feel comfortable doing this change as your first pull request? @aksm and I are 🥳 Happy to help if so!

Wow! Thanks @DiegoPino for the credit. 🥳 Sure.

[aksm]

Resolved by bae7814.