iOS Verification code suggestion shows on every textfield

I  have a problem. I have implemented the sms verification. When I send the request to get a sms verification code I will receive it. On my textfield with contenttype : "one time code" I will get the suggestion that was send to me. After that I go to a new view with a lot of textfields. There the content type is: Name. County or Unspecified. But when I click on a the textfield I directly see the sms code as a suggestion. Is that normal behavior on a iPhone or not. Because I think it is not.
I have also looked a lot but cannot find anything about it. The only thing is that some people have it but no solutions.
Have you managed to find any solutions for this as of yet? Still having this issue.
iOS Verification code suggestion shows on every textfield
 
 
Q