[Dovecot] dovecot(last day cvs version) lost mail

[John Wong]

i find a problem, after upgrade dovecot to last day cvs version,=20
each folder only can see the first one arrived new mail,
other new mail is lost

i see this message in mail log:

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Fixed index file mail/username/.foldername/dovecot.index:
first_recent_uid_lowwater 146 -> 145
Corrupted index file mail/username/.foldername/dovecot.index: Duplicate
header extension keywords

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openbsd/i386, postfix-2.3x, dovecot(last day cvs version)