Merge pull request #383 from jonasdekeukelaere/518-usertemplate-uniqu… #392

Job	Run time
Docker	54s
Yarn test	8s
PHP Code Sniffer	39s
PHPStan - Static Code Analysis	1m 16s
PHPUnit - functional (PHP 7.4)	1m 12s
PHPUnit - unit (PHP 7.4)	1m 29s
PHPUnit - installer (PHP 7.4)	1m 19s
PHPUnit - functional (PHP 8)	1m 29s
PHPUnit - unit (PHP 8)	1m 27s
PHPUnit - installer (PHP 8)	1m 17s
	11m 10s

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