一般フォーラム

I think I found a workaround by moving \rensuji inside \mynoteref

\newcommand{\mynoteref}[1]{%
\ifnum \getrefnumber{#1}=\value{mynoterefctr}%
\else%
\setcounterref{mynoterefctr}{#1}%
\rensuji{\ref{#1}}%
\fi}