Merge remote-tracking branch 'origin/4.5' #1550

Job	Run time
Run code style check (8.0)	2m 32s
Solr integration tests (7.4)	10m 15s
Unit tests & SQLite integration tests (7.4)	6m 47s
Solr integration tests (8.0)	10m 1s
Solr integration tests (8.1)	9m 49s
Unit tests & SQLite integration tests (8.0)	6m 59s
Unit tests & SQLite integration tests (8.1)	6m 21s
MySQL integration tests (7.4)	12m 33s
MySQL integration tests (8.0)	12m 49s
PostgreSQL integration tests (7.4)	21m 5s
MySQL integration tests (8.1)	12m 25s
PostgreSQL integration tests (8.0)	22m 53s
PostgreSQL integration tests (8.1)	24m 7s
	2h 38m 36s

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