Rename group to old_overlay_group.
Rename group to old_overlay_group.

andersk/zulip,brainwane/zulip,rishig/zulip,andersk/zulip,synicalsyntax/zulip,brainwane/zulip,showell/zulip,dhcrzf/zulip,rishig/zulip,shubhamdhama/zulip,zulip/zulip,kou/zulip,andersk/zulip,timabbott/zulip,hackerkid/zulip,rishig/zulip,timabbott/zulip,zulip/zulip,shubhamdhama/zulip,synicalsyntax/zulip,showell/zulip,punchagan/zulip,eeshangarg/zulip,jackrzhang/zulip,zulip/zulip,jackrzhang/zulip,kou/zulip,rht/zulip,timabbott/zulip,synicalsyntax/zulip,synicalsyntax/zulip,brainwane/zulip,punchagan/zulip,shubhamdhama/zulip,rht/zulip,showell/zulip,zulip/zulip,eeshangarg/zulip,jackrzhang/zulip,timabbott/zulip,punchagan/zulip,shubhamdhama/zulip,andersk/zulip,dhcrzf/zulip,rht/zulip,shubhamdhama/zulip,zulip/zulip,tommyip/zulip,showell/zulip,rishig/zulip,andersk/zulip,hackerkid/zulip,kou/zulip,hackerkid/zulip,showell/zulip,brainwane/zulip,timabbott/zulip,timabbott/zulip,kou/zulip,rht/zulip,tommyip/zulip,tommyip/zulip,brainwane/zulip,eeshangarg/zulip,andersk/zulip,eeshangarg/zulip,jackrzhang/zulip,tommyip/zulip,brainwane/zulip,andersk/zulip,synicalsyntax/zulip,jackrzhang/zulip,brainwane/zulip,kou/zulip,eeshangarg/zulip,jackrzhang/zulip,eeshangarg/zulip,synicalsyntax/zulip,tommyip/zulip,dhcrzf/zulip,hackerkid/zulip,rht/zulip,tommyip/zulip,timabbott/zulip,hackerkid/zulip,shubhamdhama/zulip,rishig/zulip,hackerkid/zulip,showell/zulip,rht/zulip,hackerkid/zulip,dhcrzf/zulip,synicalsyntax/zulip,punchagan/zulip,rishig/zulip,zulip/zulip,dhcrzf/zulip,rht/zulip,shubhamdhama/zulip,kou/zulip,tommyip/zulip,rishig/zulip,punchagan/zulip,zulip/zulip,punchagan/zulip,dhcrzf/zulip,showell/zulip,jackrzhang/zulip,eeshangarg/zulip,punchagan/zulip,dhcrzf/zulip,kou/zulip