grammar we're using, we don't switch grammars.  Therefore,
under these conditions we should not switch back--if we do, the GrammarResolver
may present us with a different grammar, and this produces very bad results.


git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@175927 13f79535-47bb-0310-9956-ffa450edef68