Rename ignore.flag to is_exiting_overlay.
Rename ignore.flag to is_exiting_overlay.

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