Wrong PHP version for sub domain created via API/CLI

Applicable to:

Main domain example.com has PHP version, for example, 7.1.
Sub-domain subdomain.example.com is created via CLI with PHP handler version of, for example, 7.2:

# plesk bin subdomain --create subdomain -webspace-name 'example.com' -domain example.com -php_handler_id plesk-php72-fpm
In Domains > subdomain.example.com > PHP Settings > View the phpinfo() page can be seen that PHP 7.1 is in use.
FPM configuration file for subdomain.example.com is located in the pool of PHP 7.1:

# find /opt/plesk/php/ -name "*subdomain.example.com*"
/opt/plesk/php/7.1/etc/php-fpm.d/subdomain.example.com.conf
Sub-domains created via API have the same issue.

Product issue:

#PPPM-7753 "Support issue PPPM-7753"
Fixed in:
- Plesk Obsidian (RC1 18.0.15 as #PPP-34228) 04 June 2019

Please consider updating your server:

If update is not possible for some reason you may try the following

temporary solution

Upgrade to the stable Plesk Obsidian version which is planned to be released on September 2019.

Note: The solution is compiled with versions of PHP mentioned in the symptoms in mind.

Until stable Plesk Obsidian version becomes available use the following instruction:

Also, it is possible to switch it back and forth via the command line:

Log in to Plesk using SSH.
Execute the following commands:

# plesk bin domain -u subdomain.example.com -php_handler_id plesk-php71-fpm
# plesk bin domain -u subdomain.example.com -php_handler_id plesk-php72-fpm