iPhone "Phone" app copies the wrong phone number

Consider this a bug-report of the Phone app;

I open up one of my favourites in the Phone app. This person has 2 phone numbers, lets say ABC and XYZ. I need to copy the first one, ABC, the main number for this contact. I can see that the number is ABC. I long-press that and select "Copy", then open up another app to paste the phone number. What is pasted is not the first phone number I tried to copy, but the second one. In this example, XYZ is pasted, even though I long-pressed ABC and pressed copy on that. I have tried multiple times, but it is consistent. I also tried to copy XYZ, and that results in what I expected.

I think there is a off-by-one issue in the Phone app. Possibly with merged contacts. I think someone at Apple should have a look at this.