Merge branch '3.x' into 3.next #802

Job	Run time
testsuite / testsuite-linux (8.3, sqlite, highest, false)	24s
testsuite / testsuite-linux (8.2, sqlite, lowest, false)	32s
testsuite / testsuite-linux (8.4, mysql, highest, false)	1m 4s
testsuite / testsuite-linux (8.2, mysql, highest, false)	1m 23s
testsuite / testsuite-linux (8.2, pgsql, highest, false)	55s
cs-stan / Coding Standard & Static Analysis	44s
testsuite / testsuite-linux (8.5, sqlite, highest, false, --ignore-platform-req=php)	43s
	5m 45s

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