progress towards making sure cloned tiddler is correctly configured as coming from *this* space rather than source space
fixed problem with cloned tiddler not being having its source set correctly, and reduced the amount of explicit field-setting that is going on to just be setting the permissions. I've noticed a problem with public/private save location (actually manifested itself when deleting, so looking into that now
removing debug and commented code. The public/private bug I mentioned in the previous commit seems to be a red herring