PHRAS-4038 : Phraseanet - 403 on two prod pages opened simutaniously #833

Job	Run time
build phraseanet-nginx / build	3m 25s
build phraseanet-setup / build	4m 27s
build phraseanet-worker / build	3m 50s
build phraseanet-fpm / build	3m 53s
build phraseanet-db / build	53s
build phraseanet-elasticsearch / build	47s
unit test	5m 58s
	23m 13s

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