Patch request for phone fix

[rickardliljeberg]

If we first add a "work" phone number all worked well.

Now howver we add a "mobile" number with a patch request. It would then see that we had any numbers at all since before, then it would try to look up a number of type "mobile" (however only number of type "work" exists) so it would return null.

A few lines further down it would assume phonNumber is a valid object which it's not.