[NTG-context] \setupdelimitedtext and color parameter: only the second delimiter is colored

Is this the expected behaviour? From an observation from https://wiki.contextgarden.net/Text_blocks/Environments/Quotes#Directly \starttext \quote{Some text} \setupdelimitedtext [quote] [color=red] \quote{Some text} \setupdelimitedtext [quote] [symcolor=red] \quote{Some text} \stoptext