Expunged message reappeared

[Claudio Corvino]

Hi,

I have two IMAP/LMTP Dovecot server in replica (version 2.3.4.1), I use 
LDAP/AD for /userdb, /replica is working, but sometimes I get these 
errors into log:

Dec  3 15:47:15 xxx dovecot: imap(xxx)<28251><TOSxmj7SPRYloY5/>: 
Warning: Maildir /mnt/mail-storage-lv0007/xxx/Maildir: Expunged message 
reappeared, giving a new UID (old uid=233140, 
file=1638540323.M588041P27708.xxx,S=84376,W=85507:2,)

The user delete the message and then the message reappears into mail 
client after one second.

Does anybody knows how can I fix it?

Thanks in advance

Regards
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