do not highlight group_by step
do not highlight group_by step

djmitche/buildbot-infra,seankelly/buildbot-infra,buildbot/buildbot-infra,buildbot/buildbot-infra,ewongbb/buildbot-infra,buildbot/buildbot-infra,djmitche/buildbot-infra,ewongbb/buildbot-infra,seankelly/buildbot-infra,seankelly/buildbot-infra,djmitche/buildbot-infra