[Zope] (X)Emacs messes files?

Hello, I (surely) wan´t to use (X)Emacs for editing HTML and with Zope also as dtml Editor. I connect to Zope, load the file, edit and save. Problem: All Methods get DTML Documents after that and also lost their title! DTML Documents also lost their title. Is this a bug? Is there a workaround? Thanks, Carsten.