GraphQL createTesteExecution returns a 200 OK code response together with an error message "Cannot read property 'map' of undefined", when the fix version custom field is hidden in the screen

Short Description: GraphQL createTesteExecution returns a 200 OK code response together with an error message "Cannot read property 'map' of undefined", when the fix version custom field is hidden in the screen.

Steps to Reproduce:
1 - Navigate to a project settings - Fields menu.
2 - Click in the pencil icon to edit it.
3 - Now, search for fix versions custom field and click to hide it in the screen.
4 - Make a GrahpQL createTestExecution post request

Actual Result: A 200 OK code is displayed together with an error message.
Expected Result: No error message should be displayed.