Merged branch '4.5' #1360

Job	Run time
Run code style check (8.0)	3m 4s
Unit tests & SQLite integration tests (7.4)	11m 23s
Solr integration tests (7.4)	14m 57s
Unit tests & SQLite integration tests (8.0)	12m 56s
Solr integration tests (8.0)	12m 18s
Unit tests & SQLite integration tests (8.1)	11m 58s
Solr integration tests (8.1)	14m 32s
PostgreSQL integration tests (7.4)	39m 41s
PostgreSQL integration tests (8.0)	25m 29s
MySQL integration tests (7.4)	23m 13s
PostgreSQL integration tests (8.1)	26m 55s
MySQL integration tests (8.0)	22m 23s
MySQL integration tests (8.1)	18m 17s
	3h 57m 6s

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