I have specified the headnumber of chapter to be "the Number chpt".

By using \setuplist and \placelist with the attributes "label=yes",
I could get a content with the label as what I want.

But the headnumber of chapter label on bookmarks is still using "Number"
intead of  "the Number chpt".
What should I do to enable this feature?
A minimal example:

\setuplabeltext[en][chapter={the , chpt}]
\setupinteraction[state=start]
\placebookmarks[chapter,section]
\setupinteractionscreen[option=bookmark]


\setuplist[chapter,section,subsection][alternative=c]
\setuplist[chapter][distance=3em]
\setuplist[section][margin=2em]
\setuplist[subsection][margin=4em]

\starttext
\placelist[chapter,section,subsection][label=yes]
\chapter{first}
\input knuth
\chapter{second}
\input knuth
\section{second2}
\input knuth
\subsection{second3}
\input knuth
\stoptext