Ok, I got home, patched my Dom-Version, found that the turn was still there, altered the turn a bit and resubmitted it to the server...
So I hope that everything is well now. I just recall that I have read somewhere here that one ought to reload the turn from the host in order to cope with the patch...phew!
I am okay with whatever we do with marignon, but it would be nice if UndeadDolphinHacker could be convinced to set himself to AI or find a replacement...