Merge pull request #11704 from jredrejo/message_invalid_username #8462

Job	Run time
Path match check	5s
Python unit tests (2.7)	11m 55s
Python unit tests on Mac OS (3.6)	20m 52s
Python unit tests (3.6)	9m 52s
Python postgres unit tests	11m 9s
Python unit tests on Windows Server (3.8)	17m 0s
Python unit tests (3.7)	9m 36s
Python unit tests (3.8)	9m 44s
Python unit tests (3.9)	9m 58s
Python unit tests (3.10)	10m 26s
Python unit tests (3.11)	19m 46s
	2h 10m 23s

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