silly bug

1. I have a goal set up, average 85km a week running for 52 weeks.

2. My log defaults were set up to show km for running.

3. Up until now I have averaged like 81 km a week so the goal read

By 12/31/2012 I will run an average of 85 kms per week for 52 consecutive weeks.
During the past 48 calendar weeks you ran an average of 81.1 kms per week.

4. I changed my log default to miles.

5. Now the goal reads:

By 12/31/2012 I will run an average of 85 kms per week for 52 consecutive weeks.
During the past 48 calendar weeks you ran an average of 50.7 kms per week.

I think it should say 50.7 miles, or 81.1 kms, I mean, choose one system right. My feeling it should read kms as even though I set my default to miles the goal is set in kms.