Merge pull request #1282 from PortableSteve/custom-admin-route-fix #1162

Job	Run time
CI / Generate matrix	12s
CI / Context	1s
CI / Check governance	1s
CI / 8.1 prf-low mysql57 phpunit all	2m 45s
CI / 8.2 mariadb phpunit all	3m 7s
CI / 8.3 mysql80 phpunit all	3m 4s
CI / 8.3 mysql84 phpunit all	3m 32s
CI / 8.1 mysql57 phplinting	2m 20s
CI / 8.1 mysql57 endtoend root job1	8m 43s
CI / 8.3 mysql80 endtoend root job1	8m 31s
CI / 8.1 mysql57 endtoend root job2	8m 22s
CI / 8.3 mysql80 endtoend root job2	7m 52s
CI / 8.1 mysql57 endtoend root job3	9m 14s
CI / 8.3 mysql80 endtoend root job3	9m 46s
CI / 8.1 mysql57 endtoend root job4	9m 22s
CI / 8.3 mysql80 endtoend root job4	9m 12s
CI / 8.1 mysql57 endtoend root job5	6m 20s
CI / 8.3 mysql80 endtoend root job5	6m 24s
CI / 8.1 mysql57 endtoend root job6	8m 20s
CI / 8.3 mysql80 endtoend root job6	9m 12s
CI / 8.1 mysql57 endtoend root job7	11m 11s
CI / 8.3 mysql80 endtoend root job7	11m 35s
CI / 8.1 mysql57 js	4m 29s
CI / 8.1 mysql57 doclinting	3m 9s
CI / Dispatch tag patch release	1s
	2h 26m 45s

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