hotline #106864 : forbid dedicated groups edition and deletion

2 jobs from hotline#106864_abonnes_newsletter__pbl_de_gestion_des_groupes_dynamiques in 44 minutes and 10 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #20703
docker
test:php5_latest

00:44:10

passed #20704
docker
test:php7_latest

00:24:10