NEW Use custom list for eagerloaded relations #1341

Job	Run time
CI / Generate matrix	7s
CI / Context	1s
CI / 8.1 prf-low mysql57 phpunit framework	17m 25s
CI / 8.1 mysql57 phpunit framework	16m 10s
CI / 8.2 mysql80 phpunit framework	19m 22s
CI / 8.1 prf-low mysql57 phpunit cms	1m 42s
CI / 8.1 mysql57 phpunit cms	1m 34s
CI / 8.2 mysql80 phpunit cms	1m 56s
CI / 8.1 mysql57 phplinting	1m 46s
CI / Check unreleased changes	0s
CI / Patch release	0s
	1h 0m 3s

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