#1096: fixed `findExistingForSocialLogin` finder #533

Job	Run time
Coding Standard & Static Analysis	37s
testsuite (7.4, sqlite)	49s
testsuite (7.4, mysql)	1m 7s
testsuite (7.4, pgsql)	54s
testsuite (8.0, sqlite)	28s
testsuite (8.0, mysql)	35s
testsuite (8.0, pgsql)	31s
testsuite (8.1, sqlite)	41s
testsuite (8.1, mysql)	34s
testsuite (8.1, pgsql)	33s
testsuite (8.2, sqlite)	21s
testsuite (8.2, mysql)	35s
testsuite (8.2, pgsql)	27s
testsuite (8.3, sqlite)	2m 32s
testsuite (8.3, mysql)	29s
testsuite (8.3, pgsql)	28s
	11m 41s

Provide feedback