Improve error message in message_list.select_id().
Improve error message in message_list.select_id().

shubhamdhama/zulip,eeshangarg/zulip,amanharitsh123/zulip,brainwane/zulip,mahim97/zulip,rht/zulip,jrowan/zulip,vabs22/zulip,shubhamdhama/zulip,brockwhittaker/zulip,jphilipsen05/zulip,ryanbackman/zulip,eeshangarg/zulip,brockwhittaker/zulip,synicalsyntax/zulip,jackrzhang/zulip,rishig/zulip,tommyip/zulip,christi3k/zulip,amanharitsh123/zulip,showell/zulip,jackrzhang/zulip,rishig/zulip,punchagan/zulip,jackrzhang/zulip,jphilipsen05/zulip,amanharitsh123/zulip,hackerkid/zulip,eeshangarg/zulip,timabbott/zulip,dhcrzf/zulip,ryanbackman/zulip,eeshangarg/zulip,j831/zulip,punchagan/zulip,Galexrt/zulip,punchagan/zulip,mahim97/zulip,jrowan/zulip,j831/zulip,rht/zulip,synicalsyntax/zulip,j831/zulip,jrowan/zulip,tommyip/zulip,punchagan/zulip,andersk/zulip,hackerkid/zulip,zulip/zulip,jackrzhang/zulip,tommyip/zulip,jrowan/zulip,zulip/zulip,brainwane/zulip,synicalsyntax/zulip,andersk/zulip,zulip/zulip,showell/zulip,showell/zulip,rht/zulip,rishig/zulip,zulip/zulip,brockwhittaker/zulip,amanharitsh123/zulip,SmartPeople/zulip,vaidap/zulip,mahim97/zulip,brockwhittaker/zulip,brainwane/zulip,shubhamdhama/zulip,vaidap/zulip,synicalsyntax/zulip,christi3k/zulip,shubhamdhama/zulip,vabs22/zulip,vaidap/zulip,verma-varsha/zulip,rht/zulip,brainwane/zulip,shubhamdhama/zulip,amanharitsh123/zulip,andersk/zulip,j831/zulip,j831/zulip,zulip/zulip,jphilipsen05/zulip,jphilipsen05/zulip,hackerkid/zulip,brockwhittaker/zulip,timabbott/zulip,timabbott/zulip,dhcrzf/zulip,hackerkid/zulip,j831/zulip,andersk/zulip,hackerkid/zulip,ryanbackman/zulip,vabs22/zulip,eeshangarg/zulip,tommyip/zulip,rht/zulip,vabs22/zulip,showell/zulip,shubhamdhama/zulip,punchagan/zulip,dhcrzf/zulip,christi3k/zulip,shubhamdhama/zulip,ryanbackman/zulip,showell/zulip,SmartPeople/zulip,rht/zulip,SmartPeople/zulip,brainwane/zulip,SmartPeople/zulip,vabs22/zulip,verma-varsha/zulip,jackrzhang/zulip,Galexrt/zulip,hackerkid/zulip,ryanbackman/zulip,hackerkid/zulip,dhcrzf/zulip,rishig/zulip,tommyip/zulip,Galexrt/zulip,rishig/zulip,mahim97/zulip,kou/zulip,vaidap/zulip,punchagan/zulip,Galexrt/zulip,vaidap/zulip,verma-varsha/zulip,jphilipsen05/zulip,zulip/zulip,timabbott/zulip,verma-varsha/zulip,jackrzhang/zulip,kou/zulip,jphilipsen05/zulip,showell/zulip,brainwane/zulip,amanharitsh123/zulip,synicalsyntax/zulip,mahim97/zulip,Galexrt/zulip,brockwhittaker/zulip,rishig/zulip,jrowan/zulip,verma-varsha/zulip,timabbott/zulip,christi3k/zulip,verma-varsha/zulip,dhcrzf/zulip,vaidap/zulip,mahim97/zulip,showell/zulip,christi3k/zulip,tommyip/zulip,SmartPeople/zulip,eeshangarg/zulip,dhcrzf/zulip,Galexrt/zulip,christi3k/zulip,andersk/zulip,vabs22/zulip,ryanbackman/zulip,timabbott/zulip,synicalsyntax/zulip,kou/zulip,brainwane/zulip,SmartPeople/zulip,Galexrt/zulip,kou/zulip,synicalsyntax/zulip,jackrzhang/zulip,jrowan/zulip,rht/zulip,andersk/zulip,rishig/zulip,kou/zulip,tommyip/zulip,kou/zulip,kou/zulip,eeshangarg/zulip,andersk/zulip,zulip/zulip,timabbott/zulip,punchagan/zulip,dhcrzf/zulip