Disable Disconnection of instance on the graph

See merge request !591
3 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Master

02:21:05

passed SlapOS.Eggs.UnitTest-Master.Python2

00:14:29

failed SlapOS.Eggs.UnitTest-Master.Python3

00:16:17