BUG: Does not allow saving an existing additional field, gives an error An additional field with this identifier already exists

Does not allow you to save an already existing additional field with the type Dropdown list after adding new values [file]21993[/file] [file]21994[/file] [file]21995[/file] Gives an error: [file]21993[/file] [file]21994[/file] [file]21995[/file] An additional field with this identifier already exists [file]21993[/file] [file]21994[/file] [file]21995[/file] Please fix as soon as possible as the Customer is not able to populate the database with products [file]21993[/file] [file]21994[/file] [file]21995[/file] I am adding screenshots [file]21993[/file] [file]21994[/file] [file]21995[/file] [file]21993[/file] [file]21994[/file] [file]21995[/file] [file]21993[/file] [file]21994[/file] [file]21995[/file] [file]21993[/file] [file]21994[/file] [file]21995[/file]