custom fields: Fix field value not saved on change, just after created.
custom fields: Fix field value not saved on change, just after created.

Whenever custom fields templates get rendered within user account
settings, on-change event listener wasn't get created. Cause
event listener wasn't set properly.

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