Merge pull request #4246 from esl/fix-flaky-muc-light-tests #1085

Job	Run time
edoc on OTP 25.2	2m 20s
dialyzer on OTP 25.2	4m 38s
dynamic domains pgsql_mnesia on OTP 26.1.2	18m 46s
internal_mnesia on OTP 26.1.2	19m 40s
dynamic domains mysql_redis on OTP 26.1.2	18m 19s
pgsql_mnesia on OTP 26.1.2	21m 40s
dynamic domains odbc_mssql_mnesia on OTP 26.1.2	20m 57s
mysql_redis on OTP 26.1.2	21m 17s
dynamic domains pgsql_mnesia on OTP 25.3.2.6	19m 36s
centos_7 package	5m 31s
small_tests on OTP 25.3.2.6	8m 37s
odbc_mssql_mnesia on OTP 26.1.2	23m 13s
ubuntu_xenial package	5m 19s
small_tests on OTP 26.1.2	8m 24s
ldap_mnesia on OTP 26.1.2	17m 57s
elasticsearch_and_cassandra_mnesia on OTP 26.1.2	7m 14s
xref on OTP 25.2	2m 19s
ldap_mnesia on OTP 25.3.2.6	17m 7s
pgsql_mnesia on OTP 25.3.2.6	21m 19s
coveralls_webhook	0s
	4h 24m 13s

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