BUG #16222: [[:print:]] doesn't correctly handle Emoji skin tone modifiers on MacOS - Mailing list pgsql-bugs

The following bug has been logged on the website:

Bug reference:      16222
Logged by:          Mack Earnhardt
Email address:      mack@agilereasoning.com
PostgreSQL version: 11.6
Operating system:   MacOS Catalina
Description:

On Linux heroku-18, these expressions both eval true:

select '✌'~'\A[[:print:]]*\Z';
select '✌🏻'~'\A[[:print:]]*\Z';

On MacOS Catalina, the 1st evals true but the 2nd evals false.