Error: UIDVALIDITY of master change

[<ft...@gm...>]

I am using the git version of mbsync (from June 13).  I run mbsync with this command line:

/path/to/git-isync/src/mbsync -a -q -J -c ~/path/to/Acct1/mbsyncrc

A few days ago one of the IMAP servers I use was upgraded to MS Exchange 2010.  After the upgrade I have been getting error messages like

Error: UIDVALIDITY of master changed (got xxxxx, expected yyyyy)

It looks to me as though yyyyy only appears in my .mbsyncstate.journal and .mbsyncstate.new files.

Can I fix this just by changing yyyyy to xxxxx in my .mbsyncstate.whatever files?