Integration tests for visitor id vs user id scenarios #7319

Job	Run time
PHP (UnitTests, 7.2, Mysql, PDO_MYSQL)	3m 1s
Client	1m 10s
Javascript	3m 19s
PHP (UnitTests, 8.2, Mariadb, PDO_MYSQL)	2m 54s
PHP (UnitTests, 8.4, Mysql, MYSQLI)	2m 58s
PHP (SystemTestsPlugins, 7.2, Mysql, PDO_MYSQL)	12m 56s
UI (0)	17m 19s
PHP (SystemTestsPlugins, 8.2, Mariadb, PDO_MYSQL)	11m 40s
UI (1)	38m 44s
PHP (SystemTestsPlugins, 8.4, Mysql, MYSQLI)	14m 8s
UI (2)	16m 53s
PHP (SystemTestsCore, 7.2, Mysql, PDO_MYSQL)	7m 32s
UI (3)	18m 25s
PHP (SystemTestsCore, 8.2, Mariadb, PDO_MYSQL)	8m 14s
PHP (SystemTestsCore, 8.4, Mysql, MYSQLI)	10m 16s
PHP (IntegrationTestsCore, 7.2, Mysql, PDO_MYSQL)	13m 8s
PHP (IntegrationTestsCore, 8.2, Mariadb, PDO_MYSQL)	11m 32s
PHP (IntegrationTestsCore, 8.4, Mysql, MYSQLI)	13m 35s
PHP (IntegrationTestsPlugins, 7.2, Mysql, PDO_MYSQL)	29m 44s
PHP (IntegrationTestsPlugins, 8.2, Mariadb, PDO_MYSQL)	26m 52s
PHP (IntegrationTestsPlugins, 8.4, Mysql, MYSQLI)	37m 9s
	5h 1m 29s

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