Merge pull request #4387 from esl/muc-presence-crash #1168

Job	Run time
dialyzer on OTP 26.2.5.2	4m 59s
dynamic domains pgsql_mnesia on OTP 27.0.1	20m 28s
edoc on OTP 26.2.5.2	2m 9s
dynamic domains mysql_redis on OTP 27.0.1	19m 35s
internal_mnesia on OTP 27.0.1	20m 2s
dynamic domains odbc_mssql_mnesia on OTP 27.0.1	22m 5s
pgsql_mnesia on OTP 27.0.1	23m 37s
ubuntu_xenial package	4m 7s
small_tests on OTP 26.2.5.2	7m 23s
dynamic domains pgsql_mnesia on OTP 26.2.5.2	20m 9s
mysql_redis on OTP 27.0.1	24m 4s
small_tests on OTP 27.0.1	6m 50s
odbc_mssql_mnesia on OTP 27.0.1	26m 47s
ldap_mnesia on OTP 27.0.1	18m 43s
xref on OTP 26.2.5.2	1m 53s
elasticsearch_and_cassandra_mnesia on OTP 27.0.1	8m 21s
ldap_mnesia on OTP 26.2.5.2	18m 30s
pgsql_mnesia on OTP 26.2.5.2	24m 22s
coveralls_webhook	0s
	4h 34m 4s

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