Mail error log polluted with dovecot imap errors

[Steve Dondley]

I'm running debian bullseye. I've had issues running solr on debian due 
to some kind of bug I was able to patch by upgrading the os.

After the upgrade, everything seems to work perfectly fine and the 
search feature in my client using solr now works. However, I get 
hundreds of these pairs of errors every minute in mail.err

Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '102
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '103
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '104
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '105
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '106
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '118
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '132
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '133
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '134
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '135
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '136
Sep 17 04:47:52 email dovecot: imap: Error:     '
Sep 17 04:47:52 email dovecot: imap(s)<8699><1eOe/CzMbOl/AAAB>: Error: 
fts_solr: received invalid uid '137

...and so on


The bug I patched also threw a similar kind of error:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=970692

I don't know if this is another debian issue or a misconfiguration on my 
end. I'm not sure where to begin to look. Can someone please point me in 
the right direction?