Swagger UI array schema not allowing comma delimited list of integers.

Using java OpenApi 3 and spring boot, when a list of integers or numbers is used on a mapping in swagger ui i am unable to insert a comma delimited list of numbers on the single line. If it is a list of strings this is acceptable and swagger will parse it correctly. 

Is seems as though because the UI is marking the input of the list of numbers as a number the comma isn't valid. is there anyway to change this?