fix double graphicspath bug

thesiscomposer.php

@@ -553,6 +553,7 @@ END;
       if (count($matches) > 3)
         $graphicspath = $matches[2];
       $tex = preg_replace("/\\\\includegraphics\s*(?<R>\[((?:[^\[\]]+|(?&R))*)\])(?<Q>{((?:[^{}]+|(?&Q))*)})/i",'\includegraphics${1}{'.$d."/".$graphicspath.'${4}}',$tex);
+      $tex = str_replace("$graphicspath$graphicspath","$graphicspath",$tex);
       global $sloppy_begin;
       global $sloppy_end;
       $tex = preg_replace("/\s*\\\\bibliography\s*(?<R>{((?:[^{}]+|(?&R))*)})/i","\n".$sloppy_begin.'