+ // The comparison routine simply copies the paragraphs over into the
+ // new buffer with the document class from wherever they came from.
+ // So we need to reset the document class of all the paragraphs.
+ // See bug #10295.
+ ErrorList el;
+ cap::switchBetweenClasses(
+ olddc, dest_buffer->params().documentClassPtr(),
+ static_cast<InsetText &>(dest_buffer->inset()), el);
+