No, it's not that easy. It's definitely a bug.
If I just write "&", it works.
If I try to write "Jacko&", the "&" doesn't appear.
If I try to write "Jacko &", the "&" doesn't appear.
If I try to write "Jacko o&", it works.
Hm.
So I try again, and it works. Hm again.
I know I've tried "Bo & Elisabeth" before, and it worked. I try now and it fails. I try again, and it works. And again, and it works.
After some head-scratching: If you manage to type up to and including "&" before the dropdown with suggestions appears, then you can type "&". If the dropdown has appeared, you can't write "&".
If the dropdown has already appeared, you can type something that isn't in any of the suggested alternatives so that the dropdown disappears, and then you can type "&" again (and remove whatever incorrect character you just wrote). Or you can type really quickly so that you get to "&" before the dropdown appears. Or even write the "&" first and put the rest of the name in afterwards.