Bug: Batch editing exercises in strength activity - if the first one is already set to desired exercise, changes to rest don't apply

This is becoming more serious with recent Fenix 8 betas with broken exercise recognition.

Repro steps: Have a strength workouts with exercises badly identified as eg.

1. Benchpress

2. Something else

3. Something completely wrong

I then want to change all three to benchpress (because I did a set of 3 benchpresses), so I select 1...3, edit them, and select benchpress.

Expected: Connect iOS app should change all three to benchpress

Actual behavior: Connect app thinks "1st element from selection == selected exercise, no change occured", keeps showing exercise types for selection as "Mixed", saving it doen't have any effect.