Merge pull request #4256 from esl/cets/prevent-crash-on-upgrade #1090

Job	Run time
edoc on OTP 25.2	2m 7s
internal_mnesia on OTP 26.1.2	18m 54s
dialyzer on OTP 25.2	4m 37s
dynamic domains pgsql_mnesia on OTP 26.1.2	18m 47s
dynamic domains mysql_redis on OTP 26.1.2	18m 19s
dynamic domains odbc_mssql_mnesia on OTP 26.1.2	20m 5s
pgsql_mnesia on OTP 26.1.2	22m 52s
dynamic domains pgsql_mnesia on OTP 25.3.2.6	18m 48s
centos_7 package	5m 47s
mysql_redis on OTP 26.1.2	23m 23s
small_tests on OTP 25.3.2.6	7m 35s
ubuntu_xenial package	6m 2s
odbc_mssql_mnesia on OTP 26.1.2	24m 31s
small_tests on OTP 26.1.2	7m 45s
ldap_mnesia on OTP 26.1.2	18m 5s
elasticsearch_and_cassandra_mnesia on OTP 26.1.2	7m 5s
xref on OTP 25.2	2m 9s
ldap_mnesia on OTP 25.3.2.6	17m 47s
pgsql_mnesia on OTP 25.3.2.6	21m 59s
coveralls_webhook	0s
	4h 26m 37s

Provide feedback