Cannot run Purge() on keys returned by Unseen()

[crooks]

Hi,

I've noticed that keys returned by Unseen() can only be purged if a suffix is applied. E.g:
dir.Purge(key + ":2,")
This might be by design because the key relates to the /new/ format rather than /cur/ but it would still be useful to purge against keys returned by Unseen.

Thanks very much for the library!

Best wishes,
Steve

[luksen]

Thanks! Purge and Move both erroneously calculated the file names instead of using Filename.