why the items in oneof tag can't include comma.

[Beaelf]

• I have looked at the documentation here first?
• I have looked at the examples provided that may showcase my question here?

Package version eg. v9, v10:

v10

Issue, Question or Enhancement:

I want to limit the status value only to be 'active' or 'active,inactive', but it return panic.

Code sample, to showcase or reproduce:

func TestOneof(t *testing.T) {
	type User struct {
		Status string `validate:"oneof='active' 'inactive,active'"`
	}
	user := User{
		Status: "inactive,active",
	}
	err := validator.New().Struct(user)
	fmt.Println(err)
}

result

=== RUN   TestOneof
--- FAIL: TestOneof (0.00s)
panic: Undefined validation function 'active'' on field 'Status' [recovered]
	panic: Undefined validation function 'active'' on field 'Status'

[ribrdb]

It also seems impossible to use a datetime format which include a comma, e.g. "Monday, January 2, 2006"