Live Communication Server password expiry

Somehow when I installed LCS I had not set the account to not expire so I was getting warnings in the eventvwr that the password was about to expire. Last week I set the service account to not have the password expire and I thought that was the end of it. However today I checked the eventvwr and found that I was getting eventid 12295 which is because the password is set to not expire. KB Article 830534 incorrectly (imho) states that this is due to the default domain policy or other group policy. This is only partially correct as it also occurs if you override the maximum age domain policy and select "password does not expire"