ooh that's interesting - does that mean there is potential here for a nasty inadvertant overwriting?
if i copy and paste invoice32 to invoice33 and forget to update the URL, I could end up overwriting invoice32 (filesystem copy) with the contents of the new invoice?
Might be worth considering a way to avoid this kind of thing happening! may be if more than one data item has the same URL attribute a warning be thrown?
Daniel
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