Description: When editing an activity to change the assigned pair of shoes, the distance is not added to the new pair. This issue occurs both in the iOS app and in the web application. Previously, the mileage was updated correctly when modifying the shoe assignment.
Steps to reproduce: 1. Log an activity with the default pair of shoes. 2. Edit the activity and change the assigned shoes to another pair. 3. Check the mileage totals for both pairs.
The distance remains with the original pair and is not added to the new one.
