\DeclareMathAlphabet{\mathgt}{JY3}{gt}{m}{n}
\fi
-\ifdefined\fontseriesforce
-\def\bfseries@mc{bx}
-\def\bfseries@gt{bx}
-\def\bfseries@jtt{\bfseries@gt}
-\def\mdseries@mc{m}
-\def\mdseries@gt{m}
-\def\mdseries@jtt{\mdseries@gt}
+\ifdefined\@rmfamilyhook
+%%%% LaTeX 2020-02-02
+\edef\bfseries@mc{\bfdefault}
+\edef\bfseries@gt{\bfdefault}
+\def\bfseries@jtt{\bfseries@mc}
+\edef\mdseries@mc{\mddefault}
+\edef\mdseries@gt{\mddefault}
+\def\mdseries@jtt{\mdseries@mc}
\fi
\newif\if@ltj@match@family