fix(Groups): take over members during migration #347

Job	Run time
Integration php8.0-mysql-stable28	4m 36s
changes	5s
Integration php8.0-mysql-stable29	4m 28s
Integration php8.1-mysql-master	4m 1s
Integration php8.2-mysql-stable28	3m 56s
Integration php8.3-mysql-stable28	4m 42s
Integration php8.3-mysql-stable29	4m 11s
Integration php8.3-mysql-master	4m 24s
Integration php8.2-sqlite-stable28	3m 59s
Integration php8.2-pgsql-stable28	4m 22s
integration-summary	5s
	38m 49s

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