function _onKeyUpInput(evt){
            var keyCode = (evt.keyCode || evt.which);

            if(keyCode !== 13){
                $(evt.target).data("isUserHasTyped", true)
                             .off("keyup", _onKeyUpInput);
            }
        }
"keyup" event handler of inputTitle, inputBody.
Mark as user has typed on this input, and detach this event handler.
Ignore if the pressed key is ENTER.

@param {Wrapped Event} evt