refactor: Extract do_populate_profile_fields.
refactor: Extract do_populate_profile_fields.

This makes it easier to write tests (since you
can't set meta.loaded to true directly) and
separates out the concern of short-circuiting
updates.

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