fix_unreads: Actually update pre-pointer unread counts.
fix_unreads: Actually update pre-pointer unread counts.

This fixes an oversight in the original version.  (We have only
used this in controlled experiments.)

brockwhittaker/zulip,dhcrzf/zulip,timabbott/zulip,punchagan/zulip,brainwane/zulip,dhcrzf/zulip,kou/zulip,jackrzhang/zulip,synicalsyntax/zulip,rishig/zulip,hackerkid/zulip,rishig/zulip,shubhamdhama/zulip,verma-varsha/zulip,punchagan/zulip,showell/zulip,amanharitsh123/zulip,eeshangarg/zulip,verma-varsha/zulip,timabbott/zulip,jackrzhang/zulip,vaidap/zulip,tommyip/zulip,Galexrt/zulip,tommyip/zulip,zulip/zulip,tommyip/zulip,synicalsyntax/zulip,zulip/zulip,Galexrt/zulip,shubhamdhama/zulip,dhcrzf/zulip,rishig/zulip,vaidap/zulip,timabbott/zulip,synicalsyntax/zulip,hackerkid/zulip,rht/zulip,synicalsyntax/zulip,verma-varsha/zulip,punchagan/zulip,verma-varsha/zulip,rht/zulip,brainwane/zulip,andersk/zulip,brainwane/zulip,brockwhittaker/zulip,kou/zulip,amanharitsh123/zulip,brockwhittaker/zulip,rishig/zulip,hackerkid/zulip,kou/zulip,shubhamdhama/zulip,amanharitsh123/zulip,timabbott/zulip,brainwane/zulip,Galexrt/zulip,rht/zulip,mahim97/zulip,synicalsyntax/zulip,rht/zulip,Galexrt/zulip,zulip/zulip,hackerkid/zulip,vaidap/zulip,punchagan/zulip,kou/zulip,eeshangarg/zulip,jackrzhang/zulip,shubhamdhama/zulip,andersk/zulip,hackerkid/zulip,tommyip/zulip,eeshangarg/zulip,hackerkid/zulip,amanharitsh123/zulip,eeshangarg/zulip,kou/zulip,punchagan/zulip,eeshangarg/zulip,tommyip/zulip,mahim97/zulip,zulip/zulip,shubhamdhama/zulip,dhcrzf/zulip,kou/zulip,timabbott/zulip,zulip/zulip,Galexrt/zulip,jackrzhang/zulip,timabbott/zulip,rht/zulip,eeshangarg/zulip,rht/zulip,punchagan/zulip,synicalsyntax/zulip,brainwane/zulip,andersk/zulip,shubhamdhama/zulip,brockwhittaker/zulip,Galexrt/zulip,verma-varsha/zulip,showell/zulip,mahim97/zulip,jackrzhang/zulip,zulip/zulip,andersk/zulip,brockwhittaker/zulip,amanharitsh123/zulip,Galexrt/zulip,vaidap/zulip,kou/zulip,rishig/zulip,rishig/zulip,synicalsyntax/zulip,brainwane/zulip,dhcrzf/zulip,mahim97/zulip,dhcrzf/zulip,mahim97/zulip,tommyip/zulip,jackrzhang/zulip,tommyip/zulip,hackerkid/zulip,brockwhittaker/zulip,rishig/zulip,showell/zulip,dhcrzf/zulip,verma-varsha/zulip,jackrzhang/zulip,zulip/zulip,punchagan/zulip,timabbott/zulip,brainwane/zulip,showell/zulip,eeshangarg/zulip,vaidap/zulip,showell/zulip,showell/zulip,andersk/zulip,showell/zulip,vaidap/zulip,andersk/zulip,mahim97/zulip,rht/zulip,amanharitsh123/zulip,shubhamdhama/zulip,andersk/zulip