fix(property-observation): better update when in OO mode
fix(property-observation): better update when in OO mode

mbroadst/binding,davismj/binding,JeroenVinke/binding,jods4/binding,cmichaelgraham/binding,shanonvl/aurelia-binding,aurelia/binding,bigopon/binding,z-brooks/binding,hitesh97/binding,jdanyow/binding