When a country name has commas in it then it is not possible to enter that country name into the text input and find a match, however omitting commas will find the match - this will not be clear to users who may just paste in, or quickly type a country name and find no matches, for example "Pitcairn, Henderson, Ducie and Oeno Islands" will not be found if entered but "Pitcairn Henderson Ducie and Oeno Islands" will.
When a country name has commas in it then it is not possible to enter that country name into the text input and find a match, however omitting commas will find the match - this will not be clear to users who may just paste in, or quickly type a country name and find no matches, for example "Pitcairn, Henderson, Ducie and Oeno Islands" will not be found if entered but "Pitcairn Henderson Ducie and Oeno Islands" will.