Added \long to \thesis@xpatch definition

% macro by the replacement code via \textit{xpatchcmd} If the 

% \textit{xpatchcmd} fails, a class error is written to the output.

%    \begin{macrocode}

\def\thesis@xpatch#1#2#3{%

\long\def\thesis@xpatch#1#2#3{%

    \xpatchcmd{#1}{#2}{#3}{}%

      {\ClassError{fithesis4}{The command #1 does not contain searched text}}}

%    \end{macrocode}