% If unicode-math is already loaded, the following error occurs:
% ! Undefined control sequence.
% \hbar ->\hslash
-% ! Missing \endcsname inserted.
-% <to be read again>
-% \Zbar
-% Therefore temporarily set \hbar=\relax and \Zbar=\relax.
+% Therefore temporarily set \hbar=\relax.
\let\ltj@tmpa\hbar
\let\hbar\relax
\let\ltj@tmpb\iftipaonetoken
\let\iftipaonetoken\relax
-\let\ltj@tmpc\Zbar
-\let\Zbar\relax
\ReloadXunicode{EU2}
\makeatletter
\let\hbar\ltj@tmpa
\let\iftipaonetoken\ltj@tmpb
\let\ltj@tmpb\relax % no more an if-token
-\let\Zbar\ltj@tmpc
\endinput