From the administrator console, if I view a registration record for a group registration, the street address displays in both the street address and the city fields. If I view an individual record, it posts properly.
I have upgraded to 2.5, and if I edit registration record for a group registration in the admin console, the street address overwrites the city field. After editing in admin, the city field can no longer be changed from the street address. This data is stored and also exported using the CSV export.