Merge branch 'v1.15.4'

1 job for master in 13 minutes and 6 seconds (queued for 1 second)
Name Stage Failure
failed
regression_tests Test
22202        52  2018  ...                 3                Goi?s
22203 52 2018 ... 3 Goi?s
22204 52 2018 ... 3 Goi?s

[22201 rows x 7 columns]
teacher,adm_dependency:["1","2","3"],education_type:["3","4","5","6","7","8","9","10","11","12"]&dims=education_type OK!
teacher,adm_dependency:["1","2","3"] OK!
TOTAL FAIL: 18
ERROR: Job failed: exit code 1