fix(ChildObserverBinder): remove dup target assign
fix(ChildObserverBinder): remove dup target assign
AshleyGrant/templating,michaelgeorgeattard/templating,hitesh97/templating,JeroenVinke/templating,davismj/templating,PWKad/templating,aurelia/templating,shanonvl/aurelia-templating,jw56578/templating,tcollard/templating,jdanyow/templating,charlespockert/templating,cmichaelgraham/templating,milunka/aurelia-templating,simudream/templating,aurelia/templating