FTS not indexing new folders (mailboxes)

[Francisco Wagner C. Freire]

Hello,

Im getting problem on FTS on new created folders (mailboxes).

How to simulate:

 - Enable FTS (solr on our case)
 - Create a new folder (mailbox)
 - Move some message to that mailbox
 - Try to search for the message contents

*doveadm search -u user at domain text sometext*
# Found nothing, but if i move the message to another mailbox, the search
catch the message.
# I tried doveadm index command but no response as well

# This works only after a full fts rescan
*doveadm fts rescan -u user at domain*

# And now, works

*doveadm search -u user at domain text
sometext3c7b60241443ba55af680000cc4d0d4b 1*

# My dovecot version = 2.2.18 (EE)
# My fts config:

fts = solr
fts_autoindex = yes
fts_autoindex_max_recent_msgs = 50
fts_solr = url=http://127.0.0.1:8080/solr/

Anyone got this problem?