TF-3323 Handle corner cases of web socket disconnected #2345

Job	Run time
analyze-test (default)	10m 25s
analyze-test (core)	8m 52s
analyze-test (model)	8m 33s
analyze-test (contact)	8m 30s
analyze-test (forward)	8m 48s
analyze-test (rule_filter)	8m 37s
analyze-test (fcm)	8m 30s
analyze-test (email_recovery)	8m 38s
analyze-test (server_settings)	8m 31s
	1h 19m 24s

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