[NTG-context] reference \about shall not be shortened

Hi, how can I avoid shortening of referenced titles? \setupreferencing[left=,right=] \starttext \chapter[ reference={ref123}, title={This is a long titel -- every word is meaningful and shall not be omitted}, marking={Titel}, list={Titel}, bookmark={Titel}] see in “\at[ref123] \about[ref123]”. \stoptext Steffen