[Evolution] copy mail between imap-servers

[jens wefer <jens wefer ewetel net>]

hey,..
after the copy of my mail from IMAP server to the IMAP server directory
~/local/share/evolution is 3 GB big.
I would expect that evolution stores the mail only temporary.
Is this a bug?
I can delete the directory easily?
bye, jens.

1314400 ./.local/share/evolution/mail/imap/angua holly/folders
1378540 ./.local/share/evolution/mail/imap/angua holly
1411612 ./.local/share/evolution/mail/imap/angua martine/folders/INBOX/subfolders/ml/subfolders
1411616 ./.local/share/evolution/mail/imap/angua martine/folders/INBOX/subfolders/ml
1596580 ./.local/share/evolution/mail/imap/angua martine/folders/INBOX/subfolders
1596856 ./.local/share/evolution/mail/imap/angua martine/folders/INBOX
1596868 ./.local/share/evolution/mail/imap/angua martine/folders
1760228 ./.local/share/evolution/mail/imap/angua martine
3139032 ./.local/share/evolution/mail/imap
3139300 ./.local/share/evolution/mail
3139372 ./.local/share/evolution
3139596 ./.local/share
3139600 ./.local